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Finding the Fourth Proportional to 453,781.34, 680,677.48 and 138,240.98

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Solution

The fourth proportional to 453,781.34, 680,677.48 and 138,240.98 is: 207,363.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,781.34 : 680,677.48 = 138,240.98 : x
  2. Step 2: Convert to fraction form
    453,781.34/680,677.48 = 138,240.98/x
  3. Step 3: Cross multiply
    453,781.34x = 680,677.48 × 138,240.98
  4. Step 4: Simplify right side
    453,781.34x = 94,097,520,443.48
  5. Step 5: Solve for x
    x = 94,097,520,443.48/453,781.34
  6. Step 6: Final answer
    x = 207,363.13

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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.