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Finding the Fourth Proportional to 424.61, 586.23 and 326.18

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Solution

The fourth proportional to 424.61, 586.23 and 326.18 is: 450.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.61 : 586.23 = 326.18 : x
  2. Step 2: Convert to fraction form
    424.61/586.23 = 326.18/x
  3. Step 3: Cross multiply
    424.61x = 586.23 × 326.18
  4. Step 4: Simplify right side
    424.61x = 191,216.50
  5. Step 5: Solve for x
    x = 191,216.50/424.61
  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.