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Finding the Fourth Proportional to 468.49, 703.52 and 449.87

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Solution

The fourth proportional to 468.49, 703.52 and 449.87 is: 675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.49 : 703.52 = 449.87 : x
  2. Step 2: Convert to fraction form
    468.49/703.52 = 449.87/x
  3. Step 3: Cross multiply
    468.49x = 703.52 × 449.87
  4. Step 4: Simplify right side
    468.49x = 316,486.78
  5. Step 5: Solve for x
    x = 316,486.78/468.49
  6. Step 6: Final answer
    x = 675.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.