Home / 220,979.26-304,943.32-135,082.11

Finding the Fourth Proportional to 220,979.26, 304,943.32 and 135,082.11

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Solution

The fourth proportional to 220,979.26, 304,943.32 and 135,082.11 is: 186,408.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,979.26 : 304,943.32 = 135,082.11 : x
  2. Step 2: Convert to fraction form
    220,979.26/304,943.32 = 135,082.11/x
  3. Step 3: Cross multiply
    220,979.26x = 304,943.32 × 135,082.11
  4. Step 4: Simplify right side
    220,979.26x = 41,192,385,645.48
  5. Step 5: Solve for x
    x = 41,192,385,645.48/220,979.26
  6. Step 6: Final answer
    x = 186,408.38

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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.