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Finding the Fourth Proportional to 228,793.68, 315,734.76 and 126,824.40

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Solution

The fourth proportional to 228,793.68, 315,734.76 and 126,824.40 is: 175,017.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,793.68 : 315,734.76 = 126,824.40 : x
  2. Step 2: Convert to fraction form
    228,793.68/315,734.76 = 126,824.40/x
  3. Step 3: Cross multiply
    228,793.68x = 315,734.76 × 126,824.40
  4. Step 4: Simplify right side
    228,793.68x = 40,042,871,496.14
  5. Step 5: Solve for x
    x = 40,042,871,496.14/228,793.68
  6. Step 6: Final answer
    x = 175,017.38

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1.5x scale

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.