Home / 217,454.70-326,182.05-137,738.55

Finding the Fourth Proportional to 217,454.70, 326,182.05 and 137,738.55

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Solution

The fourth proportional to 217,454.70, 326,182.05 and 137,738.55 is: 206,607.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,454.70 : 326,182.05 = 137,738.55 : x
  2. Step 2: Convert to fraction form
    217,454.70/326,182.05 = 137,738.55/x
  3. Step 3: Cross multiply
    217,454.70x = 326,182.05 × 137,738.55
  4. Step 4: Simplify right side
    217,454.70x = 44,927,842,603.03
  5. Step 5: Solve for x
    x = 44,927,842,603.03/217,454.70
  6. Step 6: Final answer
    x = 206,607.83

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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.