Home / 228,849.80-315,822.71-126,868.78

Finding the Fourth Proportional to 228,849.80, 315,822.71 and 126,868.78

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Solution

The fourth proportional to 228,849.80, 315,822.71 and 126,868.78 is: 175,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,849.80 : 315,822.71 = 126,868.78 : x
  2. Step 2: Convert to fraction form
    228,849.80/315,822.71 = 126,868.78/x
  3. Step 3: Cross multiply
    228,849.80x = 315,822.71 × 126,868.78
  4. Step 4: Simplify right side
    228,849.80x = 40,068,040,849.44
  5. Step 5: Solve for x
    x = 40,068,040,849.44/228,849.80
  6. Step 6: Final answer
    x = 175,084.45

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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.