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Finding the Fourth Proportional to 453,699.80, 680,497.85 and 121,301.72

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Solution

The fourth proportional to 453,699.80, 680,497.85 and 121,301.72 is: 181,938.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,699.80 : 680,497.85 = 121,301.72 : x
  2. Step 2: Convert to fraction form
    453,699.80/680,497.85 = 121,301.72/x
  3. Step 3: Cross multiply
    453,699.80x = 680,497.85 × 121,301.72
  4. Step 4: Simplify right side
    453,699.80x = 82,545,555,652.30
  5. Step 5: Solve for x
    x = 82,545,555,652.30/453,699.80
  6. Step 6: Final answer
    x = 181,938.71

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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.