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Finding the Fourth Proportional to 381,679.40, 572,519.10 and 241,596.20

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Solution

The fourth proportional to 381,679.40, 572,519.10 and 241,596.20 is: 362,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,679.40 : 572,519.10 = 241,596.20 : x
  2. Step 2: Convert to fraction form
    381,679.40/572,519.10 = 241,596.20/x
  3. Step 3: Cross multiply
    381,679.40x = 572,519.10 × 241,596.20
  4. Step 4: Simplify right side
    381,679.40x = 138,318,438,987.42
  5. Step 5: Solve for x
    x = 138,318,438,987.42/381,679.40
  6. Step 6: Final answer
    x = 362,394.30

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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.