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Finding the Fourth Proportional to 363,427.50, 545,143.65 and 126,769.26

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Solution

The fourth proportional to 363,427.50, 545,143.65 and 126,769.26 is: 190,154.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,427.50 : 545,143.65 = 126,769.26 : x
  2. Step 2: Convert to fraction form
    363,427.50/545,143.65 = 126,769.26/x
  3. Step 3: Cross multiply
    363,427.50x = 545,143.65 × 126,769.26
  4. Step 4: Simplify right side
    363,427.50x = 69,107,457,104.20
  5. Step 5: Solve for x
    x = 69,107,457,104.20/363,427.50
  6. Step 6: Final answer
    x = 190,154.73

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1.5x scale

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.