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Finding the Fourth Proportional to 488,490.40, 732,735.60 and 222,769.90

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Solution

The fourth proportional to 488,490.40, 732,735.60 and 222,769.90 is: 334,154.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,490.40 : 732,735.60 = 222,769.90 : x
  2. Step 2: Convert to fraction form
    488,490.40/732,735.60 = 222,769.90/x
  3. Step 3: Cross multiply
    488,490.40x = 732,735.60 × 222,769.90
  4. Step 4: Simplify right side
    488,490.40x = 163,231,436,338.44
  5. Step 5: Solve for x
    x = 163,231,436,338.44/488,490.40
  6. Step 6: Final answer
    x = 334,154.85

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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.