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Finding the Fourth Proportional to 482.30, 718.25 and 451.16

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Solution

The fourth proportional to 482.30, 718.25 and 451.16 is: 671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.30 : 718.25 = 451.16 : x
  2. Step 2: Convert to fraction form
    482.30/718.25 = 451.16/x
  3. Step 3: Cross multiply
    482.30x = 718.25 × 451.16
  4. Step 4: Simplify right side
    482.30x = 324,045.67
  5. Step 5: Solve for x
    x = 324,045.67/482.30
  6. Step 6: Final answer
    x = 671.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.