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Finding the Fourth Proportional to 290,372.46, 435,585.62 and 112,892.95

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Solution

The fourth proportional to 290,372.46, 435,585.62 and 112,892.95 is: 169,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,372.46 : 435,585.62 = 112,892.95 : x
  2. Step 2: Convert to fraction form
    290,372.46/435,585.62 = 112,892.95/x
  3. Step 3: Cross multiply
    290,372.46x = 435,585.62 × 112,892.95
  4. Step 4: Simplify right side
    290,372.46x = 49,174,545,619.38
  5. Step 5: Solve for x
    x = 49,174,545,619.38/290,372.46
  6. Step 6: Final answer
    x = 169,349.90

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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.