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Finding the Fourth Proportional to 748.86, 1,122.59 and 332.17

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Solution

The fourth proportional to 748.86, 1,122.59 and 332.17 is: 497.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    748.86 : 1,122.59 = 332.17 : x
  2. Step 2: Convert to fraction form
    748.86/1,122.59 = 332.17/x
  3. Step 3: Cross multiply
    748.86x = 1,122.59 × 332.17
  4. Step 4: Simplify right side
    748.86x = 372,883.45
  5. Step 5: Solve for x
    x = 372,883.45/748.86
  6. Step 6: Final answer
    x = 497.94

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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.