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Finding the Fourth Proportional to 528,078.10, 792,117.15 and 173,103.70

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Solution

The fourth proportional to 528,078.10, 792,117.15 and 173,103.70 is: 259,655.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,078.10 : 792,117.15 = 173,103.70 : x
  2. Step 2: Convert to fraction form
    528,078.10/792,117.15 = 173,103.70/x
  3. Step 3: Cross multiply
    528,078.10x = 792,117.15 × 173,103.70
  4. Step 4: Simplify right side
    528,078.10x = 137,118,409,498.46
  5. Step 5: Solve for x
    x = 137,118,409,498.46/528,078.10
  6. Step 6: Final answer
    x = 259,655.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.