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Finding the Fourth Proportional to 332.79, 499.26 and 113.43

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Solution

The fourth proportional to 332.79, 499.26 and 113.43 is: 170.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.79 : 499.26 = 113.43 : x
  2. Step 2: Convert to fraction form
    332.79/499.26 = 113.43/x
  3. Step 3: Cross multiply
    332.79x = 499.26 × 113.43
  4. Step 4: Simplify right side
    332.79x = 56,631.06
  5. Step 5: Solve for x
    x = 56,631.06/332.79
  6. Step 6: Final answer
    x = 170.17

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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.