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Finding the Fourth Proportional to 220,477.95, 330,763.91 and 125,753.31

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Solution

The fourth proportional to 220,477.95, 330,763.91 and 125,753.31 is: 188,656.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,477.95 : 330,763.91 = 125,753.31 : x
  2. Step 2: Convert to fraction form
    220,477.95/330,763.91 = 125,753.31/x
  3. Step 3: Cross multiply
    220,477.95x = 330,763.91 × 125,753.31
  4. Step 4: Simplify right side
    220,477.95x = 41,594,655,882.28
  5. Step 5: Solve for x
    x = 41,594,655,882.28/220,477.95
  6. Step 6: Final answer
    x = 188,656.76

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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.