Home / 386,839.12-580,231.22-102,523.35

Finding the Fourth Proportional to 386,839.12, 580,231.22 and 102,523.35

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Solution

The fourth proportional to 386,839.12, 580,231.22 and 102,523.35 is: 153,777.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,839.12 : 580,231.22 = 102,523.35 : x
  2. Step 2: Convert to fraction form
    386,839.12/580,231.22 = 102,523.35/x
  3. Step 3: Cross multiply
    386,839.12x = 580,231.22 × 102,523.35
  4. Step 4: Simplify right side
    386,839.12x = 59,487,246,081.58
  5. Step 5: Solve for x
    x = 59,487,246,081.58/386,839.12
  6. Step 6: Final answer
    x = 153,777.74

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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.