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Finding the Fourth Proportional to 236,664, 326,596.88 and 129,234.24

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Solution

The fourth proportional to 236,664, 326,596.88 and 129,234.24 is: 178,343.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,664 : 326,596.88 = 129,234.24 : x
  2. Step 2: Convert to fraction form
    236,664/326,596.88 = 129,234.24/x
  3. Step 3: Cross multiply
    236,664x = 326,596.88 × 129,234.24
  4. Step 4: Simplify right side
    236,664x = 42,207,499,573.17
  5. Step 5: Solve for x
    x = 42,207,499,573.17/236,664
  6. Step 6: Final answer
    x = 178,343.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.