Home / 220,115.50-303,766.89-123,323.43

Finding the Fourth Proportional to 220,115.50, 303,766.89 and 123,323.43

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Solution

The fourth proportional to 220,115.50, 303,766.89 and 123,323.43 is: 170,190.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,115.50 : 303,766.89 = 123,323.43 : x
  2. Step 2: Convert to fraction form
    220,115.50/303,766.89 = 123,323.43/x
  3. Step 3: Cross multiply
    220,115.50x = 303,766.89 × 123,323.43
  4. Step 4: Simplify right side
    220,115.50x = 37,461,574,795.23
  5. Step 5: Solve for x
    x = 37,461,574,795.23/220,115.50
  6. Step 6: Final answer
    x = 170,190.54

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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.