Home / 220,441.03-304,236.75-129,805.42

Finding the Fourth Proportional to 220,441.03, 304,236.75 and 129,805.42

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Solution

The fourth proportional to 220,441.03, 304,236.75 and 129,805.42 is: 179,148.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,441.03 : 304,236.75 = 129,805.42 : x
  2. Step 2: Convert to fraction form
    220,441.03/304,236.75 = 129,805.42/x
  3. Step 3: Cross multiply
    220,441.03x = 304,236.75 × 129,805.42
  4. Step 4: Simplify right side
    220,441.03x = 39,491,579,113.19
  5. Step 5: Solve for x
    x = 39,491,579,113.19/220,441.03
  6. Step 6: Final answer
    x = 179,148.05

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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.