Home / 485,195.20-727,598.40-169,489.60

Finding the Fourth Proportional to 485,195.20, 727,598.40 and 169,489.60

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Solution

The fourth proportional to 485,195.20, 727,598.40 and 169,489.60 is: 254,166.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,195.20 : 727,598.40 = 169,489.60 : x
  2. Step 2: Convert to fraction form
    485,195.20/727,598.40 = 169,489.60/x
  3. Step 3: Cross multiply
    485,195.20x = 727,598.40 × 169,489.60
  4. Step 4: Simplify right side
    485,195.20x = 123,320,361,776.64
  5. Step 5: Solve for x
    x = 123,320,361,776.64/485,195.20
  6. Step 6: Final answer
    x = 254,166.49

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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.