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Finding the Fourth Proportional to 235,960, 325,627.66 and 128,530.92

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Solution

The fourth proportional to 235,960, 325,627.66 and 128,530.92 is: 177,374.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,960 : 325,627.66 = 128,530.92 : x
  2. Step 2: Convert to fraction form
    235,960/325,627.66 = 128,530.92/x
  3. Step 3: Cross multiply
    235,960x = 325,627.66 × 128,530.92
  4. Step 4: Simplify right side
    235,960x = 41,853,222,717.25
  5. Step 5: Solve for x
    x = 41,853,222,717.25/235,960
  6. Step 6: Final answer
    x = 177,374.23

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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.