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Finding the Fourth Proportional to 356.97, 532.32 and 330.51

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Solution

The fourth proportional to 356.97, 532.32 and 330.51 is: 492.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.97 : 532.32 = 330.51 : x
  2. Step 2: Convert to fraction form
    356.97/532.32 = 330.51/x
  3. Step 3: Cross multiply
    356.97x = 532.32 × 330.51
  4. Step 4: Simplify right side
    356.97x = 175,937.08
  5. Step 5: Solve for x
    x = 175,937.08/356.97
  6. Step 6: Final answer
    x = 492.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.