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Finding the Fourth Proportional to 226,223.39, 339,376.79 and 74,429

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Solution

The fourth proportional to 226,223.39, 339,376.79 and 74,429 is: 111,657.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,223.39 : 339,376.79 = 74,429 : x
  2. Step 2: Convert to fraction form
    226,223.39/339,376.79 = 74,429/x
  3. Step 3: Cross multiply
    226,223.39x = 339,376.79 × 74,429
  4. Step 4: Simplify right side
    226,223.39x = 25,259,475,102.91
  5. Step 5: Solve for x
    x = 25,259,475,102.91/226,223.39
  6. Step 6: Final answer
    x = 111,657.22

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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.