Home / 386,348.20-579,559.16-120,037.20

Finding the Fourth Proportional to 386,348.20, 579,559.16 and 120,037.20

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Solution

The fourth proportional to 386,348.20, 579,559.16 and 120,037.20 is: 180,067.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,348.20 : 579,559.16 = 120,037.20 : x
  2. Step 2: Convert to fraction form
    386,348.20/579,559.16 = 120,037.20/x
  3. Step 3: Cross multiply
    386,348.20x = 579,559.16 × 120,037.20
  4. Step 4: Simplify right side
    386,348.20x = 69,568,658,800.75
  5. Step 5: Solve for x
    x = 69,568,658,800.75/386,348.20
  6. Step 6: Final answer
    x = 180,067.25

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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.