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Finding the Fourth Proportional to 528,003.40, 792,005.10 and 148,923.40

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Solution

The fourth proportional to 528,003.40, 792,005.10 and 148,923.40 is: 223,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,003.40 : 792,005.10 = 148,923.40 : x
  2. Step 2: Convert to fraction form
    528,003.40/792,005.10 = 148,923.40/x
  3. Step 3: Cross multiply
    528,003.40x = 792,005.10 × 148,923.40
  4. Step 4: Simplify right side
    528,003.40x = 117,948,092,309.34
  5. Step 5: Solve for x
    x = 117,948,092,309.34/528,003.40
  6. Step 6: Final answer
    x = 223,385.10

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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.