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Finding the Fourth Proportional to 553.25, 763.46 and 332.16

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Solution

The fourth proportional to 553.25, 763.46 and 332.16 is: 458.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.25 : 763.46 = 332.16 : x
  2. Step 2: Convert to fraction form
    553.25/763.46 = 332.16/x
  3. Step 3: Cross multiply
    553.25x = 763.46 × 332.16
  4. Step 4: Simplify right side
    553.25x = 253,590.87
  5. Step 5: Solve for x
    x = 253,590.87/553.25
  6. Step 6: Final answer
    x = 458.37

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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.