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Finding the Fourth Proportional to 488,494.80, 732,396.60 and 188,859.60

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Solution

The fourth proportional to 488,494.80, 732,396.60 and 188,859.60 is: 283,155.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,494.80 : 732,396.60 = 188,859.60 : x
  2. Step 2: Convert to fraction form
    488,494.80/732,396.60 = 188,859.60/x
  3. Step 3: Cross multiply
    488,494.80x = 732,396.60 × 188,859.60
  4. Step 4: Simplify right side
    488,494.80x = 138,320,128,917.36
  5. Step 5: Solve for x
    x = 138,320,128,917.36/488,494.80
  6. Step 6: Final answer
    x = 283,155.79

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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.