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Finding the Fourth Proportional to 488,442.80, 732,318.60 and 188,807.60

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Solution

The fourth proportional to 488,442.80, 732,318.60 and 188,807.60 is: 283,077.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,442.80 : 732,318.60 = 188,807.60 : x
  2. Step 2: Convert to fraction form
    488,442.80/732,318.60 = 188,807.60/x
  3. Step 3: Cross multiply
    488,442.80x = 732,318.60 × 188,807.60
  4. Step 4: Simplify right side
    488,442.80x = 138,267,317,301.36
  5. Step 5: Solve for x
    x = 138,267,317,301.36/488,442.80
  6. Step 6: Final answer
    x = 283,077.81

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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.