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Finding the Fourth Proportional to 254,081.32, 381,179.58 and 87,870.76

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Solution

The fourth proportional to 254,081.32, 381,179.58 and 87,870.76 is: 131,826.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,081.32 : 381,179.58 = 87,870.76 : x
  2. Step 2: Convert to fraction form
    254,081.32/381,179.58 = 87,870.76/x
  3. Step 3: Cross multiply
    254,081.32x = 381,179.58 × 87,870.76
  4. Step 4: Simplify right side
    254,081.32x = 33,494,539,391.08
  5. Step 5: Solve for x
    x = 33,494,539,391.08/254,081.32
  6. Step 6: Final answer
    x = 131,826.06

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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.