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Finding the Fourth Proportional to 342,220.31, 472,267.17 and 189,250.60

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Solution

The fourth proportional to 342,220.31, 472,267.17 and 189,250.60 is: 261,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,220.31 : 472,267.17 = 189,250.60 : x
  2. Step 2: Convert to fraction form
    342,220.31/472,267.17 = 189,250.60/x
  3. Step 3: Cross multiply
    342,220.31x = 472,267.17 × 189,250.60
  4. Step 4: Simplify right side
    342,220.31x = 89,376,841,975.21
  5. Step 5: Solve for x
    x = 89,376,841,975.21/342,220.31
  6. Step 6: Final answer
    x = 261,167.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.