Home / 215,258.76-322,888.26-74,919

Finding the Fourth Proportional to 215,258.76, 322,888.26 and 74,919

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Solution

The fourth proportional to 215,258.76, 322,888.26 and 74,919 is: 112,378.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,258.76 : 322,888.26 = 74,919 : x
  2. Step 2: Convert to fraction form
    215,258.76/322,888.26 = 74,919/x
  3. Step 3: Cross multiply
    215,258.76x = 322,888.26 × 74,919
  4. Step 4: Simplify right side
    215,258.76x = 24,190,465,550.94
  5. Step 5: Solve for x
    x = 24,190,465,550.94/215,258.76
  6. Step 6: Final answer
    x = 112,378.54

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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.