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Finding the Fourth Proportional to 218,519.56, 301,463.22 and 125,335.72

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Solution

The fourth proportional to 218,519.56, 301,463.22 and 125,335.72 is: 172,909.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,519.56 : 301,463.22 = 125,335.72 : x
  2. Step 2: Convert to fraction form
    218,519.56/301,463.22 = 125,335.72/x
  3. Step 3: Cross multiply
    218,519.56x = 301,463.22 × 125,335.72
  4. Step 4: Simplify right side
    218,519.56x = 37,784,109,732.22
  5. Step 5: Solve for x
    x = 37,784,109,732.22/218,519.56
  6. Step 6: Final answer
    x = 172,909.51

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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.