Home / 220,156.08-303,820.32-123,367.15

Finding the Fourth Proportional to 220,156.08, 303,820.32 and 123,367.15

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Solution

The fourth proportional to 220,156.08, 303,820.32 and 123,367.15 is: 170,249.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,156.08 : 303,820.32 = 123,367.15 : x
  2. Step 2: Convert to fraction form
    220,156.08/303,820.32 = 123,367.15/x
  3. Step 3: Cross multiply
    220,156.08x = 303,820.32 × 123,367.15
  4. Step 4: Simplify right side
    220,156.08x = 37,481,446,990.49
  5. Step 5: Solve for x
    x = 37,481,446,990.49/220,156.08
  6. Step 6: Final answer
    x = 170,249.43

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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.