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Finding the Fourth Proportional to 220,204.56, 303,903.63 and 123,424.86

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Solution

The fourth proportional to 220,204.56, 303,903.63 and 123,424.86 is: 170,338.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,204.56 : 303,903.63 = 123,424.86 : x
  2. Step 2: Convert to fraction form
    220,204.56/303,903.63 = 123,424.86/x
  3. Step 3: Cross multiply
    220,204.56x = 303,903.63 × 123,424.86
  4. Step 4: Simplify right side
    220,204.56x = 37,509,260,849.60
  5. Step 5: Solve for x
    x = 37,509,260,849.60/220,204.56
  6. Step 6: Final answer
    x = 170,338.26

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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.