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Finding the Fourth Proportional to 229,123.72, 343,603.57 and 79,323.79

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Solution

The fourth proportional to 229,123.72, 343,603.57 and 79,323.79 is: 118,957.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,123.72 : 343,603.57 = 79,323.79 : x
  2. Step 2: Convert to fraction form
    229,123.72/343,603.57 = 79,323.79/x
  3. Step 3: Cross multiply
    229,123.72x = 343,603.57 × 79,323.79
  4. Step 4: Simplify right side
    229,123.72x = 27,255,937,165.60
  5. Step 5: Solve for x
    x = 27,255,937,165.60/229,123.72
  6. Step 6: Final answer
    x = 118,957.29

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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.