Home / 485,230.66-727,956.78-148,319.26

Finding the Fourth Proportional to 485,230.66, 727,956.78 and 148,319.26

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Solution

The fourth proportional to 485,230.66, 727,956.78 and 148,319.26 is: 222,512.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,230.66 : 727,956.78 = 148,319.26 : x
  2. Step 2: Convert to fraction form
    485,230.66/727,956.78 = 148,319.26/x
  3. Step 3: Cross multiply
    485,230.66x = 727,956.78 × 148,319.26
  4. Step 4: Simplify right side
    485,230.66x = 107,970,010,921.58
  5. Step 5: Solve for x
    x = 107,970,010,921.58/485,230.66
  6. Step 6: Final answer
    x = 222,512.75

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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.