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Finding the Fourth Proportional to 372.88, 562.66 and 357.90

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Solution

The fourth proportional to 372.88, 562.66 and 357.90 is: 540.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.88 : 562.66 = 357.90 : x
  2. Step 2: Convert to fraction form
    372.88/562.66 = 357.90/x
  3. Step 3: Cross multiply
    372.88x = 562.66 × 357.90
  4. Step 4: Simplify right side
    372.88x = 201,376.01
  5. Step 5: Solve for x
    x = 201,376.01/372.88
  6. Step 6: Final answer
    x = 540.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.