Home / 386,348.50-579,516.59-105,865.75

Finding the Fourth Proportional to 386,348.50, 579,516.59 and 105,865.75

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Solution

The fourth proportional to 386,348.50, 579,516.59 and 105,865.75 is: 158,796.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,348.50 : 579,516.59 = 105,865.75 : x
  2. Step 2: Convert to fraction form
    386,348.50/579,516.59 = 105,865.75/x
  3. Step 3: Cross multiply
    386,348.50x = 579,516.59 × 105,865.75
  4. Step 4: Simplify right side
    386,348.50x = 61,350,959,426.85
  5. Step 5: Solve for x
    x = 61,350,959,426.85/386,348.50
  6. Step 6: Final answer
    x = 158,796.94

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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.