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Finding the Fourth Proportional to 186,084.40, 279,040.20 and 80,849.20

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Solution

The fourth proportional to 186,084.40, 279,040.20 and 80,849.20 is: 121,236.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,084.40 : 279,040.20 = 80,849.20 : x
  2. Step 2: Convert to fraction form
    186,084.40/279,040.20 = 80,849.20/x
  3. Step 3: Cross multiply
    186,084.40x = 279,040.20 × 80,849.20
  4. Step 4: Simplify right side
    186,084.40x = 22,560,176,937.84
  5. Step 5: Solve for x
    x = 22,560,176,937.84/186,084.40
  6. Step 6: Final answer
    x = 121,236.26

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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.