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Finding the Fourth Proportional to 528,073.90, 792,110.85 and 173,123.80

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Solution

The fourth proportional to 528,073.90, 792,110.85 and 173,123.80 is: 259,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,073.90 : 792,110.85 = 173,123.80 : x
  2. Step 2: Convert to fraction form
    528,073.90/792,110.85 = 173,123.80/x
  3. Step 3: Cross multiply
    528,073.90x = 792,110.85 × 173,123.80
  4. Step 4: Simplify right side
    528,073.90x = 137,133,240,373.23
  5. Step 5: Solve for x
    x = 137,133,240,373.23/528,073.90
  6. Step 6: Final answer
    x = 259,685.70

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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.