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Finding the Fourth Proportional to 372.32, 556.96 and 306.58

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Solution

The fourth proportional to 372.32, 556.96 and 306.58 is: 458.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.32 : 556.96 = 306.58 : x
  2. Step 2: Convert to fraction form
    372.32/556.96 = 306.58/x
  3. Step 3: Cross multiply
    372.32x = 556.96 × 306.58
  4. Step 4: Simplify right side
    372.32x = 170,752.80
  5. Step 5: Solve for x
    x = 170,752.80/372.32
  6. Step 6: Final answer
    x = 458.62

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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.