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Finding the Fourth Proportional to 488,019.90, 731,446.65 and 251,240.70

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Solution

The fourth proportional to 488,019.90, 731,446.65 and 251,240.70 is: 376,560.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,019.90 : 731,446.65 = 251,240.70 : x
  2. Step 2: Convert to fraction form
    488,019.90/731,446.65 = 251,240.70/x
  3. Step 3: Cross multiply
    488,019.90x = 731,446.65 × 251,240.70
  4. Step 4: Simplify right side
    488,019.90x = 183,769,168,358.66
  5. Step 5: Solve for x
    x = 183,769,168,358.66/488,019.90
  6. Step 6: Final answer
    x = 376,560.81

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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.