Home / 386,143.20-579,733.20-246,520.80

Finding the Fourth Proportional to 386,143.20, 579,733.20 and 246,520.80

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Solution

The fourth proportional to 386,143.20, 579,733.20 and 246,520.80 is: 370,112.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,143.20 : 579,733.20 = 246,520.80 : x
  2. Step 2: Convert to fraction form
    386,143.20/579,733.20 = 246,520.80/x
  3. Step 3: Cross multiply
    386,143.20x = 579,733.20 × 246,520.80
  4. Step 4: Simplify right side
    386,143.20x = 142,916,292,250.56
  5. Step 5: Solve for x
    x = 142,916,292,250.56/386,143.20
  6. Step 6: Final answer
    x = 370,112.16

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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.