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Finding the Fourth Proportional to 235,632.92, 325,180.31 and 128,209.77

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Solution

The fourth proportional to 235,632.92, 325,180.31 and 128,209.77 is: 176,933.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,632.92 : 325,180.31 = 128,209.77 : x
  2. Step 2: Convert to fraction form
    235,632.92/325,180.31 = 128,209.77/x
  3. Step 3: Cross multiply
    235,632.92x = 325,180.31 × 128,209.77
  4. Step 4: Simplify right side
    235,632.92x = 41,691,292,112.58
  5. Step 5: Solve for x
    x = 41,691,292,112.58/235,632.92
  6. Step 6: Final answer
    x = 176,933.23

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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.