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Finding the Fourth Proportional to 220,424.22, 303,645.51 and 159,816.78

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Solution

The fourth proportional to 220,424.22, 303,645.51 and 159,816.78 is: 220,155.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,424.22 : 303,645.51 = 159,816.78 : x
  2. Step 2: Convert to fraction form
    220,424.22/303,645.51 = 159,816.78/x
  3. Step 3: Cross multiply
    220,424.22x = 303,645.51 × 159,816.78
  4. Step 4: Simplify right side
    220,424.22x = 48,527,647,669.66
  5. Step 5: Solve for x
    x = 48,527,647,669.66/220,424.22
  6. Step 6: Final answer
    x = 220,155.70

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1.5x scale

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.