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Finding the Fourth Proportional to 162,591.72, 243,965.34 and 57,460.20

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Solution

The fourth proportional to 162,591.72, 243,965.34 and 57,460.20 is: 86,217.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,591.72 : 243,965.34 = 57,460.20 : x
  2. Step 2: Convert to fraction form
    162,591.72/243,965.34 = 57,460.20/x
  3. Step 3: Cross multiply
    162,591.72x = 243,965.34 × 57,460.20
  4. Step 4: Simplify right side
    162,591.72x = 14,018,297,229.47
  5. Step 5: Solve for x
    x = 14,018,297,229.47/162,591.72
  6. Step 6: Final answer
    x = 86,217.78

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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.