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Finding the Fourth Proportional to 424.01, 585.48 and 306.24

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Solution

The fourth proportional to 424.01, 585.48 and 306.24 is: 422.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.01 : 585.48 = 306.24 : x
  2. Step 2: Convert to fraction form
    424.01/585.48 = 306.24/x
  3. Step 3: Cross multiply
    424.01x = 585.48 × 306.24
  4. Step 4: Simplify right side
    424.01x = 179,297.40
  5. Step 5: Solve for x
    x = 179,297.40/424.01
  6. Step 6: Final answer
    x = 422.87

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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.