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Finding the Fourth Proportional to 488,138.05, 732,185.20 and 133,150.89

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Solution

The fourth proportional to 488,138.05, 732,185.20 and 133,150.89 is: 199,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,138.05 : 732,185.20 = 133,150.89 : x
  2. Step 2: Convert to fraction form
    488,138.05/732,185.20 = 133,150.89/x
  3. Step 3: Cross multiply
    488,138.05x = 732,185.20 × 133,150.89
  4. Step 4: Simplify right side
    488,138.05x = 97,491,109,443.93
  5. Step 5: Solve for x
    x = 97,491,109,443.93/488,138.05
  6. Step 6: Final answer
    x = 199,720.37

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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.