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Finding the Fourth Proportional to 372.29, 513.50 and 247.91

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Solution

The fourth proportional to 372.29, 513.50 and 247.91 is: 341.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.29 : 513.50 = 247.91 : x
  2. Step 2: Convert to fraction form
    372.29/513.50 = 247.91/x
  3. Step 3: Cross multiply
    372.29x = 513.50 × 247.91
  4. Step 4: Simplify right side
    372.29x = 127,303.69
  5. Step 5: Solve for x
    x = 127,303.69/372.29
  6. Step 6: Final answer
    x = 341.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.