Home / 384,819.38-531,052.71-215,056.34

Finding the Fourth Proportional to 384,819.38, 531,052.71 and 215,056.34

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Solution

The fourth proportional to 384,819.38, 531,052.71 and 215,056.34 is: 296,778.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,819.38 : 531,052.71 = 215,056.34 : x
  2. Step 2: Convert to fraction form
    384,819.38/531,052.71 = 215,056.34/x
  3. Step 3: Cross multiply
    384,819.38x = 531,052.71 × 215,056.34
  4. Step 4: Simplify right side
    384,819.38x = 114,206,252,159.68
  5. Step 5: Solve for x
    x = 114,206,252,159.68/384,819.38
  6. Step 6: Final answer
    x = 296,778.85

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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.