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Finding the Fourth Proportional to 504.18, 757.70 and 298.79

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Solution

The fourth proportional to 504.18, 757.70 and 298.79 is: 449.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.18 : 757.70 = 298.79 : x
  2. Step 2: Convert to fraction form
    504.18/757.70 = 298.79/x
  3. Step 3: Cross multiply
    504.18x = 757.70 × 298.79
  4. Step 4: Simplify right side
    504.18x = 226,387.90
  5. Step 5: Solve for x
    x = 226,387.90/504.18
  6. Step 6: Final answer
    x = 449.02

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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.