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Finding the Fourth Proportional to 100,306.48, 150,459.42 and 25,426.42

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Solution

The fourth proportional to 100,306.48, 150,459.42 and 25,426.42 is: 38,139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,306.48 : 150,459.42 = 25,426.42 : x
  2. Step 2: Convert to fraction form
    100,306.48/150,459.42 = 25,426.42/x
  3. Step 3: Cross multiply
    100,306.48x = 150,459.42 × 25,426.42
  4. Step 4: Simplify right side
    100,306.48x = 3,825,644,405.88
  5. Step 5: Solve for x
    x = 3,825,644,405.88/100,306.48
  6. Step 6: Final answer
    x = 38,139.55

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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.