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Finding the Fourth Proportional to 460.13, 634.98 and 253.13

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Solution

The fourth proportional to 460.13, 634.98 and 253.13 is: 349.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.13 : 634.98 = 253.13 : x
  2. Step 2: Convert to fraction form
    460.13/634.98 = 253.13/x
  3. Step 3: Cross multiply
    460.13x = 634.98 × 253.13
  4. Step 4: Simplify right side
    460.13x = 160,729.31
  5. Step 5: Solve for x
    x = 160,729.31/460.13
  6. Step 6: Final answer
    x = 349.32

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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.