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Finding the Fourth Proportional to 462.17, 637.88 and 351.45

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Solution

The fourth proportional to 462.17, 637.88 and 351.45 is: 485.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.17 : 637.88 = 351.45 : x
  2. Step 2: Convert to fraction form
    462.17/637.88 = 351.45/x
  3. Step 3: Cross multiply
    462.17x = 637.88 × 351.45
  4. Step 4: Simplify right side
    462.17x = 224,181.17
  5. Step 5: Solve for x
    x = 224,181.17/462.17
  6. Step 6: Final answer
    x = 485.06

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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.