Home / 381,985.20-572,977.80-132,667.20

Finding the Fourth Proportional to 381,985.20, 572,977.80 and 132,667.20

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Solution

The fourth proportional to 381,985.20, 572,977.80 and 132,667.20 is: 199,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,985.20 : 572,977.80 = 132,667.20 : x
  2. Step 2: Convert to fraction form
    381,985.20/572,977.80 = 132,667.20/x
  3. Step 3: Cross multiply
    381,985.20x = 572,977.80 × 132,667.20
  4. Step 4: Simplify right side
    381,985.20x = 76,015,360,388.16
  5. Step 5: Solve for x
    x = 76,015,360,388.16/381,985.20
  6. Step 6: Final answer
    x = 199,000.80

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Similar ratio
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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.