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Finding the Fourth Proportional to 218,403.27, 301,321.22 and 132,389.91

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Solution

The fourth proportional to 218,403.27, 301,321.22 and 132,389.91 is: 182,652.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,403.27 : 301,321.22 = 132,389.91 : x
  2. Step 2: Convert to fraction form
    218,403.27/301,321.22 = 132,389.91/x
  3. Step 3: Cross multiply
    218,403.27x = 301,321.22 × 132,389.91
  4. Step 4: Simplify right side
    218,403.27x = 39,891,888,534.94
  5. Step 5: Solve for x
    x = 39,891,888,534.94/218,403.27
  6. Step 6: Final answer
    x = 182,652.43

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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.