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Finding the Fourth Proportional to 424.62, 586.24 and 326.18

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Solution

The fourth proportional to 424.62, 586.24 and 326.18 is: 450.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.62 : 586.24 = 326.18 : x
  2. Step 2: Convert to fraction form
    424.62/586.24 = 326.18/x
  3. Step 3: Cross multiply
    424.62x = 586.24 × 326.18
  4. Step 4: Simplify right side
    424.62x = 191,219.76
  5. Step 5: Solve for x
    x = 191,219.76/424.62
  6. Step 6: Final answer
    x = 450.33

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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.