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Finding the Fourth Proportional to 185,655.70, 278,483.28 and 67,326.76

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Solution

The fourth proportional to 185,655.70, 278,483.28 and 67,326.76 is: 100,990.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,655.70 : 278,483.28 = 67,326.76 : x
  2. Step 2: Convert to fraction form
    185,655.70/278,483.28 = 67,326.76/x
  3. Step 3: Cross multiply
    185,655.70x = 278,483.28 × 67,326.76
  4. Step 4: Simplify right side
    185,655.70x = 18,749,376,956.57
  5. Step 5: Solve for x
    x = 18,749,376,956.57/185,655.70
  6. Step 6: Final answer
    x = 100,990.04

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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.