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Finding the Fourth Proportional to 235,988.44, 354,060.42 and 86,274.52

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Solution

The fourth proportional to 235,988.44, 354,060.42 and 86,274.52 is: 129,440.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,988.44 : 354,060.42 = 86,274.52 : x
  2. Step 2: Convert to fraction form
    235,988.44/354,060.42 = 86,274.52/x
  3. Step 3: Cross multiply
    235,988.44x = 354,060.42 × 86,274.52
  4. Step 4: Simplify right side
    235,988.44x = 30,546,392,786.50
  5. Step 5: Solve for x
    x = 30,546,392,786.50/235,988.44
  6. Step 6: Final answer
    x = 129,440.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.