Home / 389,311.25-583,758.68-199,694.12

Finding the Fourth Proportional to 389,311.25, 583,758.68 and 199,694.12

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Solution

The fourth proportional to 389,311.25, 583,758.68 and 199,694.12 is: 299,434.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,311.25 : 583,758.68 = 199,694.12 : x
  2. Step 2: Convert to fraction form
    389,311.25/583,758.68 = 199,694.12/x
  3. Step 3: Cross multiply
    389,311.25x = 583,758.68 × 199,694.12
  4. Step 4: Simplify right side
    389,311.25x = 116,573,171,977.70
  5. Step 5: Solve for x
    x = 116,573,171,977.70/389,311.25
  6. Step 6: Final answer
    x = 299,434.38

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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.