Home / 228,823.28-315,760.20-126,847.76

Finding the Fourth Proportional to 228,823.28, 315,760.20 and 126,847.76

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Solution

The fourth proportional to 228,823.28, 315,760.20 and 126,847.76 is: 175,041.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,823.28 : 315,760.20 = 126,847.76 : x
  2. Step 2: Convert to fraction form
    228,823.28/315,760.20 = 126,847.76/x
  3. Step 3: Cross multiply
    228,823.28x = 315,760.20 × 126,847.76
  4. Step 4: Simplify right side
    228,823.28x = 40,053,474,067.15
  5. Step 5: Solve for x
    x = 40,053,474,067.15/228,823.28
  6. Step 6: Final answer
    x = 175,041.08

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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.