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Finding the Fourth Proportional to 186,000.51, 278,994.51 and 80,819.43

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Solution

The fourth proportional to 186,000.51, 278,994.51 and 80,819.43 is: 121,226.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,000.51 : 278,994.51 = 80,819.43 : x
  2. Step 2: Convert to fraction form
    186,000.51/278,994.51 = 80,819.43/x
  3. Step 3: Cross multiply
    186,000.51x = 278,994.51 × 80,819.43
  4. Step 4: Simplify right side
    186,000.51x = 22,548,177,271.33
  5. Step 5: Solve for x
    x = 22,548,177,271.33/186,000.51
  6. Step 6: Final answer
    x = 121,226.43

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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.