Home / 485,217.96-727,726.56-130,147.50

Finding the Fourth Proportional to 485,217.96, 727,726.56 and 130,147.50

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Solution

The fourth proportional to 485,217.96, 727,726.56 and 130,147.50 is: 195,194.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,217.96 : 727,726.56 = 130,147.50 : x
  2. Step 2: Convert to fraction form
    485,217.96/727,726.56 = 130,147.50/x
  3. Step 3: Cross multiply
    485,217.96x = 727,726.56 × 130,147.50
  4. Step 4: Simplify right side
    485,217.96x = 94,711,792,467.60
  5. Step 5: Solve for x
    x = 94,711,792,467.60/485,217.96
  6. Step 6: Final answer
    x = 195,194.33

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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.