Home / 220,921.97-304,884.14-130,330.89

Finding the Fourth Proportional to 220,921.97, 304,884.14 and 130,330.89

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Solution

The fourth proportional to 220,921.97, 304,884.14 and 130,330.89 is: 179,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,921.97 : 304,884.14 = 130,330.89 : x
  2. Step 2: Convert to fraction form
    220,921.97/304,884.14 = 130,330.89/x
  3. Step 3: Cross multiply
    220,921.97x = 304,884.14 × 130,330.89
  4. Step 4: Simplify right side
    220,921.97x = 39,735,820,661.43
  5. Step 5: Solve for x
    x = 39,735,820,661.43/220,921.97
  6. Step 6: Final answer
    x = 179,863.60

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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.