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Finding the Fourth Proportional to 220,200.30, 303,866.24 and 124,707.74

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Solution

The fourth proportional to 220,200.30, 303,866.24 and 124,707.74 is: 172,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,200.30 : 303,866.24 = 124,707.74 : x
  2. Step 2: Convert to fraction form
    220,200.30/303,866.24 = 124,707.74/x
  3. Step 3: Cross multiply
    220,200.30x = 303,866.24 × 124,707.74
  4. Step 4: Simplify right side
    220,200.30x = 37,894,469,909.83
  5. Step 5: Solve for x
    x = 37,894,469,909.83/220,200.30
  6. Step 6: Final answer
    x = 172,090.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.