Home / 386,543.70-579,815.55-165,359.70

Finding the Fourth Proportional to 386,543.70, 579,815.55 and 165,359.70

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Solution

The fourth proportional to 386,543.70, 579,815.55 and 165,359.70 is: 248,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,543.70 : 579,815.55 = 165,359.70 : x
  2. Step 2: Convert to fraction form
    386,543.70/579,815.55 = 165,359.70/x
  3. Step 3: Cross multiply
    386,543.70x = 579,815.55 × 165,359.70
  4. Step 4: Simplify right side
    386,543.70x = 95,878,125,403.34
  5. Step 5: Solve for x
    x = 95,878,125,403.34/386,543.70
  6. Step 6: Final answer
    x = 248,039.55

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Similar ratio
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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.