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Finding the Fourth Proportional to 635.02, 875.85 and 372.82

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Solution

The fourth proportional to 635.02, 875.85 and 372.82 is: 514.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.02 : 875.85 = 372.82 : x
  2. Step 2: Convert to fraction form
    635.02/875.85 = 372.82/x
  3. Step 3: Cross multiply
    635.02x = 875.85 × 372.82
  4. Step 4: Simplify right side
    635.02x = 326,534.40
  5. Step 5: Solve for x
    x = 326,534.40/635.02
  6. Step 6: Final answer
    x = 514.21

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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.