Home / 217,650.44-326,410.05-77,400.56

Finding the Fourth Proportional to 217,650.44, 326,410.05 and 77,400.56

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Solution

The fourth proportional to 217,650.44, 326,410.05 and 77,400.56 is: 116,077.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,650.44 : 326,410.05 = 77,400.56 : x
  2. Step 2: Convert to fraction form
    217,650.44/326,410.05 = 77,400.56/x
  3. Step 3: Cross multiply
    217,650.44x = 326,410.05 × 77,400.56
  4. Step 4: Simplify right side
    217,650.44x = 25,264,321,765.91
  5. Step 5: Solve for x
    x = 25,264,321,765.91/217,650.44
  6. Step 6: Final answer
    x = 116,077.51

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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.