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Finding the Fourth Proportional to 347,098.16, 479,243.69 and 270,702.61

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Solution

The fourth proportional to 347,098.16, 479,243.69 and 270,702.61 is: 373,763.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,098.16 : 479,243.69 = 270,702.61 : x
  2. Step 2: Convert to fraction form
    347,098.16/479,243.69 = 270,702.61/x
  3. Step 3: Cross multiply
    347,098.16x = 479,243.69 × 270,702.61
  4. Step 4: Simplify right side
    347,098.16x = 129,732,516,172.54
  5. Step 5: Solve for x
    x = 129,732,516,172.54/347,098.16
  6. Step 6: Final answer
    x = 373,763.19

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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.