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Finding the Fourth Proportional to 488,496.80, 732,399.60 and 188,861.60

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Solution

The fourth proportional to 488,496.80, 732,399.60 and 188,861.60 is: 283,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,496.80 : 732,399.60 = 188,861.60 : x
  2. Step 2: Convert to fraction form
    488,496.80/732,399.60 = 188,861.60/x
  3. Step 3: Cross multiply
    488,496.80x = 732,399.60 × 188,861.60
  4. Step 4: Simplify right side
    488,496.80x = 138,322,160,295.36
  5. Step 5: Solve for x
    x = 138,322,160,295.36/488,496.80
  6. Step 6: Final answer
    x = 283,158.78

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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.