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Finding the Fourth Proportional to 366,882.31, 550,145.70 and 215,120.89

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Solution

The fourth proportional to 366,882.31, 550,145.70 and 215,120.89 is: 322,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,882.31 : 550,145.70 = 215,120.89 : x
  2. Step 2: Convert to fraction form
    366,882.31/550,145.70 = 215,120.89/x
  3. Step 3: Cross multiply
    366,882.31x = 550,145.70 × 215,120.89
  4. Step 4: Simplify right side
    366,882.31x = 118,347,832,613.67
  5. Step 5: Solve for x
    x = 118,347,832,613.67/366,882.31
  6. Step 6: Final answer
    x = 322,577.10

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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.