Home / 485,187.20-727,781.52-169,643.60

Finding the Fourth Proportional to 485,187.20, 727,781.52 and 169,643.60

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Solution

The fourth proportional to 485,187.20, 727,781.52 and 169,643.60 is: 254,465.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,187.20 : 727,781.52 = 169,643.60 : x
  2. Step 2: Convert to fraction form
    485,187.20/727,781.52 = 169,643.60/x
  3. Step 3: Cross multiply
    485,187.20x = 727,781.52 × 169,643.60
  4. Step 4: Simplify right side
    485,187.20x = 123,463,477,066.27
  5. Step 5: Solve for x
    x = 123,463,477,066.27/485,187.20
  6. Step 6: Final answer
    x = 254,465.65

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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.