Home / 386,422.20-579,520.26-149,708.58

Finding the Fourth Proportional to 386,422.20, 579,520.26 and 149,708.58

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Solution

The fourth proportional to 386,422.20, 579,520.26 and 149,708.58 is: 224,519.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,422.20 : 579,520.26 = 149,708.58 : x
  2. Step 2: Convert to fraction form
    386,422.20/579,520.26 = 149,708.58/x
  3. Step 3: Cross multiply
    386,422.20x = 579,520.26 × 149,708.58
  4. Step 4: Simplify right side
    386,422.20x = 86,759,155,205.83
  5. Step 5: Solve for x
    x = 86,759,155,205.83/386,422.20
  6. Step 6: Final answer
    x = 224,519.08

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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.