Home / 386,310.80-579,377.60-105,849.92

Finding the Fourth Proportional to 386,310.80, 579,377.60 and 105,849.92

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Solution

The fourth proportional to 386,310.80, 579,377.60 and 105,849.92 is: 158,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,310.80 : 579,377.60 = 105,849.92 : x
  2. Step 2: Convert to fraction form
    386,310.80/579,377.60 = 105,849.92/x
  3. Step 3: Cross multiply
    386,310.80x = 579,377.60 × 105,849.92
  4. Step 4: Simplify right side
    386,310.80x = 61,327,072,609.79
  5. Step 5: Solve for x
    x = 61,327,072,609.79/386,310.80
  6. Step 6: Final answer
    x = 158,750.60

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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.