Home / 516,286.20-774,429.30-142,309.20

Finding the Fourth Proportional to 516,286.20, 774,429.30 and 142,309.20

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Solution

The fourth proportional to 516,286.20, 774,429.30 and 142,309.20 is: 213,463.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,286.20 : 774,429.30 = 142,309.20 : x
  2. Step 2: Convert to fraction form
    516,286.20/774,429.30 = 142,309.20/x
  3. Step 3: Cross multiply
    516,286.20x = 774,429.30 × 142,309.20
  4. Step 4: Simplify right side
    516,286.20x = 110,208,414,139.56
  5. Step 5: Solve for x
    x = 110,208,414,139.56/516,286.20
  6. Step 6: Final answer
    x = 213,463.80

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Similar ratio
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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.