Home / 228,329.70-315,087.24-126,359.47

Finding the Fourth Proportional to 228,329.70, 315,087.24 and 126,359.47

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Solution

The fourth proportional to 228,329.70, 315,087.24 and 126,359.47 is: 174,371.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,329.70 : 315,087.24 = 126,359.47 : x
  2. Step 2: Convert to fraction form
    228,329.70/315,087.24 = 126,359.47/x
  3. Step 3: Cross multiply
    228,329.70x = 315,087.24 × 126,359.47
  4. Step 4: Simplify right side
    228,329.70x = 39,814,256,650.16
  5. Step 5: Solve for x
    x = 39,814,256,650.16/228,329.70
  6. Step 6: Final answer
    x = 174,371.78

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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.