Home / 228,400.80-315,120.64-132,889.04

Finding the Fourth Proportional to 228,400.80, 315,120.64 and 132,889.04

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Solution

The fourth proportional to 228,400.80, 315,120.64 and 132,889.04 is: 183,344.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,400.80 : 315,120.64 = 132,889.04 : x
  2. Step 2: Convert to fraction form
    228,400.80/315,120.64 = 132,889.04/x
  3. Step 3: Cross multiply
    228,400.80x = 315,120.64 × 132,889.04
  4. Step 4: Simplify right side
    228,400.80x = 41,876,078,856.83
  5. Step 5: Solve for x
    x = 41,876,078,856.83/228,400.80
  6. Step 6: Final answer
    x = 183,344.71

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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.