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Finding the Fourth Proportional to 453,650.82, 680,279.19 and 138,033.91

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Solution

The fourth proportional to 453,650.82, 680,279.19 and 138,033.91 is: 206,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,650.82 : 680,279.19 = 138,033.91 : x
  2. Step 2: Convert to fraction form
    453,650.82/680,279.19 = 138,033.91/x
  3. Step 3: Cross multiply
    453,650.82x = 680,279.19 × 138,033.91
  4. Step 4: Simplify right side
    453,650.82x = 93,901,596,487.33
  5. Step 5: Solve for x
    x = 93,901,596,487.33/453,650.82
  6. Step 6: Final answer
    x = 206,990.91

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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.