Home / 386,460.20-579,666-120,200.24

Finding the Fourth Proportional to 386,460.20, 579,666 and 120,200.24

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Solution

The fourth proportional to 386,460.20, 579,666 and 120,200.24 is: 180,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,460.20 : 579,666 = 120,200.24 : x
  2. Step 2: Convert to fraction form
    386,460.20/579,666 = 120,200.24/x
  3. Step 3: Cross multiply
    386,460.20x = 579,666 × 120,200.24
  4. Step 4: Simplify right side
    386,460.20x = 69,675,992,319.84
  5. Step 5: Solve for x
    x = 69,675,992,319.84/386,460.20
  6. Step 6: Final answer
    x = 180,292.80

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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.