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Finding the Fourth Proportional to 610,286.88, 915,468.39 and 161,008.18

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Solution

The fourth proportional to 610,286.88, 915,468.39 and 161,008.18 is: 241,522.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,286.88 : 915,468.39 = 161,008.18 : x
  2. Step 2: Convert to fraction form
    610,286.88/915,468.39 = 161,008.18/x
  3. Step 3: Cross multiply
    610,286.88x = 915,468.39 × 161,008.18
  4. Step 4: Simplify right side
    610,286.88x = 147,397,899,861.99
  5. Step 5: Solve for x
    x = 147,397,899,861.99/610,286.88
  6. Step 6: Final answer
    x = 241,522.31

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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.