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Finding the Fourth Proportional to 617.88, 925.20 and 536.88

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Solution

The fourth proportional to 617.88, 925.20 and 536.88 is: 803.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.88 : 925.20 = 536.88 : x
  2. Step 2: Convert to fraction form
    617.88/925.20 = 536.88/x
  3. Step 3: Cross multiply
    617.88x = 925.20 × 536.88
  4. Step 4: Simplify right side
    617.88x = 496,721.38
  5. Step 5: Solve for x
    x = 496,721.38/617.88
  6. Step 6: Final answer
    x = 803.91

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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.