Home / 228,350.72-315,117.51-126,380.45

Finding the Fourth Proportional to 228,350.72, 315,117.51 and 126,380.45

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Solution

The fourth proportional to 228,350.72, 315,117.51 and 126,380.45 is: 174,401.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,350.72 : 315,117.51 = 126,380.45 : x
  2. Step 2: Convert to fraction form
    228,350.72/315,117.51 = 126,380.45/x
  3. Step 3: Cross multiply
    228,350.72x = 315,117.51 × 126,380.45
  4. Step 4: Simplify right side
    228,350.72x = 39,824,692,716.68
  5. Step 5: Solve for x
    x = 39,824,692,716.68/228,350.72
  6. Step 6: Final answer
    x = 174,401.43

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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.