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Finding the Fourth Proportional to 229,655.50, 344,520.20 and 79,938.34

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Solution

The fourth proportional to 229,655.50, 344,520.20 and 79,938.34 is: 119,920.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,655.50 : 344,520.20 = 79,938.34 : x
  2. Step 2: Convert to fraction form
    229,655.50/344,520.20 = 79,938.34/x
  3. Step 3: Cross multiply
    229,655.50x = 344,520.20 × 79,938.34
  4. Step 4: Simplify right side
    229,655.50x = 27,540,372,223.01
  5. Step 5: Solve for x
    x = 27,540,372,223.01/229,655.50
  6. Step 6: Final answer
    x = 119,920.37

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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.