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Finding the Fourth Proportional to 194,680.88, 268,659.61 and 105,256.88

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Solution

The fourth proportional to 194,680.88, 268,659.61 and 105,256.88 is: 145,254.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,680.88 : 268,659.61 = 105,256.88 : x
  2. Step 2: Convert to fraction form
    194,680.88/268,659.61 = 105,256.88/x
  3. Step 3: Cross multiply
    194,680.88x = 268,659.61 × 105,256.88
  4. Step 4: Simplify right side
    194,680.88x = 28,278,270,724.18
  5. Step 5: Solve for x
    x = 28,278,270,724.18/194,680.88
  6. Step 6: Final answer
    x = 145,254.49

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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.