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Finding the Fourth Proportional to 199,479.45, 298,960.64 and 81,013.17

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Solution

The fourth proportional to 199,479.45, 298,960.64 and 81,013.17 is: 121,414.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,479.45 : 298,960.64 = 81,013.17 : x
  2. Step 2: Convert to fraction form
    199,479.45/298,960.64 = 81,013.17/x
  3. Step 3: Cross multiply
    199,479.45x = 298,960.64 × 81,013.17
  4. Step 4: Simplify right side
    199,479.45x = 24,219,748,384.96
  5. Step 5: Solve for x
    x = 24,219,748,384.96/199,479.45
  6. Step 6: Final answer
    x = 121,414.76

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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.