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Finding the Fourth Proportional to 342,218.31, 472,264.41 and 189,248.60

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Solution

The fourth proportional to 342,218.31, 472,264.41 and 189,248.60 is: 261,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,218.31 : 472,264.41 = 189,248.60 : x
  2. Step 2: Convert to fraction form
    342,218.31/472,264.41 = 189,248.60/x
  3. Step 3: Cross multiply
    342,218.31x = 472,264.41 × 189,248.60
  4. Step 4: Simplify right side
    342,218.31x = 89,375,376,061.00
  5. Step 5: Solve for x
    x = 89,375,376,061.00/342,218.31
  6. Step 6: Final answer
    x = 261,164.80

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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.