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Finding the Fourth Proportional to 228,084.78, 314,744.32 and 126,104.28

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Solution

The fourth proportional to 228,084.78, 314,744.32 and 126,104.28 is: 174,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,084.78 : 314,744.32 = 126,104.28 : x
  2. Step 2: Convert to fraction form
    228,084.78/314,744.32 = 126,104.28/x
  3. Step 3: Cross multiply
    228,084.78x = 314,744.32 × 126,104.28
  4. Step 4: Simplify right side
    228,084.78x = 39,690,605,857.69
  5. Step 5: Solve for x
    x = 39,690,605,857.69/228,084.78
  6. Step 6: Final answer
    x = 174,016.90

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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.