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Finding the Fourth Proportional to 372.88, 562.64 and 357.91

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Solution

The fourth proportional to 372.88, 562.64 and 357.91 is: 540.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.88 : 562.64 = 357.91 : x
  2. Step 2: Convert to fraction form
    372.88/562.64 = 357.91/x
  3. Step 3: Cross multiply
    372.88x = 562.64 × 357.91
  4. Step 4: Simplify right side
    372.88x = 201,374.48
  5. Step 5: Solve for x
    x = 201,374.48/372.88
  6. Step 6: Final answer
    x = 540.05

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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.