Home / 315,766.62-435,764.22-172,535.52

Finding the Fourth Proportional to 315,766.62, 435,764.22 and 172,535.52

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Solution

The fourth proportional to 315,766.62, 435,764.22 and 172,535.52 is: 238,102.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,766.62 : 435,764.22 = 172,535.52 : x
  2. Step 2: Convert to fraction form
    315,766.62/435,764.22 = 172,535.52/x
  3. Step 3: Cross multiply
    315,766.62x = 435,764.22 × 172,535.52
  4. Step 4: Simplify right side
    315,766.62x = 75,184,806,295.09
  5. Step 5: Solve for x
    x = 75,184,806,295.09/315,766.62
  6. Step 6: Final answer
    x = 238,102.45

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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.