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Finding the Fourth Proportional to 228,761.54, 343,188.17 and 79,007.32

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Solution

The fourth proportional to 228,761.54, 343,188.17 and 79,007.32 is: 118,526.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,761.54 : 343,188.17 = 79,007.32 : x
  2. Step 2: Convert to fraction form
    228,761.54/343,188.17 = 79,007.32/x
  3. Step 3: Cross multiply
    228,761.54x = 343,188.17 × 79,007.32
  4. Step 4: Simplify right side
    228,761.54x = 27,114,375,456.43
  5. Step 5: Solve for x
    x = 27,114,375,456.43/228,761.54
  6. Step 6: Final answer
    x = 118,526.81

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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.