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Finding the Fourth Proportional to 424.99, 586.45 and 238.44

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Solution

The fourth proportional to 424.99, 586.45 and 238.44 is: 329.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.99 : 586.45 = 238.44 : x
  2. Step 2: Convert to fraction form
    424.99/586.45 = 238.44/x
  3. Step 3: Cross multiply
    424.99x = 586.45 × 238.44
  4. Step 4: Simplify right side
    424.99x = 139,833.14
  5. Step 5: Solve for x
    x = 139,833.14/424.99
  6. Step 6: Final answer
    x = 329.03

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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.