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Finding the Fourth Proportional to 1,024.41, 1,536.65 and 331.15

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Solution

The fourth proportional to 1,024.41, 1,536.65 and 331.15 is: 496.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.41 : 1,536.65 = 331.15 : x
  2. Step 2: Convert to fraction form
    1,024.41/1,536.65 = 331.15/x
  3. Step 3: Cross multiply
    1,024.41x = 1,536.65 × 331.15
  4. Step 4: Simplify right side
    1,024.41x = 508,861.65
  5. Step 5: Solve for x
    x = 508,861.65/1,024.41
  6. Step 6: Final answer
    x = 496.74

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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.