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Finding the Fourth Proportional to 229,516.88, 344,197.92 and 87,328.40

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Solution

The fourth proportional to 229,516.88, 344,197.92 and 87,328.40 is: 130,963.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,516.88 : 344,197.92 = 87,328.40 : x
  2. Step 2: Convert to fraction form
    229,516.88/344,197.92 = 87,328.40/x
  3. Step 3: Cross multiply
    229,516.88x = 344,197.92 × 87,328.40
  4. Step 4: Simplify right side
    229,516.88x = 30,058,253,636.93
  5. Step 5: Solve for x
    x = 30,058,253,636.93/229,516.88
  6. Step 6: Final answer
    x = 130,963.15

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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.