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Finding the Fourth Proportional to 453,847.16, 680,770.80 and 138,304.28

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Solution

The fourth proportional to 453,847.16, 680,770.80 and 138,304.28 is: 207,456.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,847.16 : 680,770.80 = 138,304.28 : x
  2. Step 2: Convert to fraction form
    453,847.16/680,770.80 = 138,304.28/x
  3. Step 3: Cross multiply
    453,847.16x = 680,770.80 × 138,304.28
  4. Step 4: Simplify right side
    453,847.16x = 94,153,515,339.02
  5. Step 5: Solve for x
    x = 94,153,515,339.02/453,847.16
  6. Step 6: Final answer
    x = 207,456.44

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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.