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Finding the Fourth Proportional to 235,799.92, 325,393.68 and 128,370.33

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Solution

The fourth proportional to 235,799.92, 325,393.68 and 128,370.33 is: 177,145.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,799.92 : 325,393.68 = 128,370.33 : x
  2. Step 2: Convert to fraction form
    235,799.92/325,393.68 = 128,370.33/x
  3. Step 3: Cross multiply
    235,799.92x = 325,393.68 × 128,370.33
  4. Step 4: Simplify right side
    235,799.92x = 41,770,894,081.51
  5. Step 5: Solve for x
    x = 41,770,894,081.51/235,799.92
  6. Step 6: Final answer
    x = 177,145.50

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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.