Home / 228,317.32-315,078.42-126,350.20

Finding the Fourth Proportional to 228,317.32, 315,078.42 and 126,350.20

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Solution

The fourth proportional to 228,317.32, 315,078.42 and 126,350.20 is: 174,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,317.32 : 315,078.42 = 126,350.20 : x
  2. Step 2: Convert to fraction form
    228,317.32/315,078.42 = 126,350.20/x
  3. Step 3: Cross multiply
    228,317.32x = 315,078.42 × 126,350.20
  4. Step 4: Simplify right side
    228,317.32x = 39,810,221,382.68
  5. Step 5: Solve for x
    x = 39,810,221,382.68/228,317.32
  6. Step 6: Final answer
    x = 174,363.56

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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.