Home / 217,680.18-326,133.57-185,766.38

Finding the Fourth Proportional to 217,680.18, 326,133.57 and 185,766.38

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Solution

The fourth proportional to 217,680.18, 326,133.57 and 185,766.38 is: 278,319.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,680.18 : 326,133.57 = 185,766.38 : x
  2. Step 2: Convert to fraction form
    217,680.18/326,133.57 = 185,766.38/x
  3. Step 3: Cross multiply
    217,680.18x = 326,133.57 × 185,766.38
  4. Step 4: Simplify right side
    217,680.18x = 60,584,652,984.33
  5. Step 5: Solve for x
    x = 60,584,652,984.33/217,680.18
  6. Step 6: Final answer
    x = 278,319.57

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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.