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Finding the Fourth Proportional to 381,995.80, 572,337.60 and 181,885.30

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Solution

The fourth proportional to 381,995.80, 572,337.60 and 181,885.30 is: 272,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,995.80 : 572,337.60 = 181,885.30 : x
  2. Step 2: Convert to fraction form
    381,995.80/572,337.60 = 181,885.30/x
  3. Step 3: Cross multiply
    381,995.80x = 572,337.60 × 181,885.30
  4. Step 4: Simplify right side
    381,995.80x = 104,099,796,077.28
  5. Step 5: Solve for x
    x = 104,099,796,077.28/381,995.80
  6. Step 6: Final answer
    x = 272,515.55

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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.