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Finding the Fourth Proportional to 354.61, 532.04 and 149.30

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Solution

The fourth proportional to 354.61, 532.04 and 149.30 is: 223.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.61 : 532.04 = 149.30 : x
  2. Step 2: Convert to fraction form
    354.61/532.04 = 149.30/x
  3. Step 3: Cross multiply
    354.61x = 532.04 × 149.30
  4. Step 4: Simplify right side
    354.61x = 79,430.17
  5. Step 5: Solve for x
    x = 79,430.17/354.61
  6. Step 6: Final answer
    x = 223.99

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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.