Home / 220,948.12-304,811.40-149,302

Finding the Fourth Proportional to 220,948.12, 304,811.40 and 149,302

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Solution

The fourth proportional to 220,948.12, 304,811.40 and 149,302 is: 205,971.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,948.12 : 304,811.40 = 149,302 : x
  2. Step 2: Convert to fraction form
    220,948.12/304,811.40 = 149,302/x
  3. Step 3: Cross multiply
    220,948.12x = 304,811.40 × 149,302
  4. Step 4: Simplify right side
    220,948.12x = 45,508,951,642.80
  5. Step 5: Solve for x
    x = 45,508,951,642.80/220,948.12
  6. Step 6: Final answer
    x = 205,971.21

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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.