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Finding the Fourth Proportional to 292,217.70, 438,294.15 and 239,535.30

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Solution

The fourth proportional to 292,217.70, 438,294.15 and 239,535.30 is: 359,276.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,217.70 : 438,294.15 = 239,535.30 : x
  2. Step 2: Convert to fraction form
    292,217.70/438,294.15 = 239,535.30/x
  3. Step 3: Cross multiply
    292,217.70x = 438,294.15 × 239,535.30
  4. Step 4: Simplify right side
    292,217.70x = 104,986,920,708.50
  5. Step 5: Solve for x
    x = 104,986,920,708.50/292,217.70
  6. Step 6: Final answer
    x = 359,276.39

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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.