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Finding the Fourth Proportional to 389,251.01, 537,179.65 and 225,894.94

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Solution

The fourth proportional to 389,251.01, 537,179.65 and 225,894.94 is: 311,742.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,251.01 : 537,179.65 = 225,894.94 : x
  2. Step 2: Convert to fraction form
    389,251.01/537,179.65 = 225,894.94/x
  3. Step 3: Cross multiply
    389,251.01x = 537,179.65 × 225,894.94
  4. Step 4: Simplify right side
    389,251.01x = 121,346,165,919.92
  5. Step 5: Solve for x
    x = 121,346,165,919.92/389,251.01
  6. Step 6: Final answer
    x = 311,742.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.