Home / 315,766.74-435,753.02-172,523.70

Finding the Fourth Proportional to 315,766.74, 435,753.02 and 172,523.70

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Solution

The fourth proportional to 315,766.74, 435,753.02 and 172,523.70 is: 238,079.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,766.74 : 435,753.02 = 172,523.70 : x
  2. Step 2: Convert to fraction form
    315,766.74/435,753.02 = 172,523.70/x
  3. Step 3: Cross multiply
    315,766.74x = 435,753.02 × 172,523.70
  4. Step 4: Simplify right side
    315,766.74x = 75,177,722,433.96
  5. Step 5: Solve for x
    x = 75,177,722,433.96/315,766.74
  6. Step 6: Final answer
    x = 238,079.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.