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Finding the Fourth Proportional to 355.72, 532.94 and 297.88

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Solution

The fourth proportional to 355.72, 532.94 and 297.88 is: 446.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.72 : 532.94 = 297.88 : x
  2. Step 2: Convert to fraction form
    355.72/532.94 = 297.88/x
  3. Step 3: Cross multiply
    355.72x = 532.94 × 297.88
  4. Step 4: Simplify right side
    355.72x = 158,752.17
  5. Step 5: Solve for x
    x = 158,752.17/355.72
  6. Step 6: Final answer
    x = 446.28

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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.