Home / 220,884.32-304,813.49-130,245.90

Finding the Fourth Proportional to 220,884.32, 304,813.49 and 130,245.90

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Solution

The fourth proportional to 220,884.32, 304,813.49 and 130,245.90 is: 179,735.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,884.32 : 304,813.49 = 130,245.90 : x
  2. Step 2: Convert to fraction form
    220,884.32/304,813.49 = 130,245.90/x
  3. Step 3: Cross multiply
    220,884.32x = 304,813.49 × 130,245.90
  4. Step 4: Simplify right side
    220,884.32x = 39,700,706,685.96
  5. Step 5: Solve for x
    x = 39,700,706,685.96/220,884.32
  6. Step 6: Final answer
    x = 179,735.29

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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.