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Finding the Fourth Proportional to 342,220.40, 512,747.40 and 292,065.20

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Solution

The fourth proportional to 342,220.40, 512,747.40 and 292,065.20 is: 437,600.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,220.40 : 512,747.40 = 292,065.20 : x
  2. Step 2: Convert to fraction form
    342,220.40/512,747.40 = 292,065.20/x
  3. Step 3: Cross multiply
    342,220.40x = 512,747.40 × 292,065.20
  4. Step 4: Simplify right side
    342,220.40x = 149,755,671,930.48
  5. Step 5: Solve for x
    x = 149,755,671,930.48/342,220.40
  6. Step 6: Final answer
    x = 437,600.07

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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.