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Finding the Fourth Proportional to 460.21, 634.35 and 377.17

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Solution

The fourth proportional to 460.21, 634.35 and 377.17 is: 519.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.21 : 634.35 = 377.17 : x
  2. Step 2: Convert to fraction form
    460.21/634.35 = 377.17/x
  3. Step 3: Cross multiply
    460.21x = 634.35 × 377.17
  4. Step 4: Simplify right side
    460.21x = 239,257.79
  5. Step 5: Solve for x
    x = 239,257.79/460.21
  6. Step 6: Final answer
    x = 519.89

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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.