Home / 259,946.60-389,628.30-147,680.60

Finding the Fourth Proportional to 259,946.60, 389,628.30 and 147,680.60

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Solution

The fourth proportional to 259,946.60, 389,628.30 and 147,680.60 is: 221,355.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,946.60 : 389,628.30 = 147,680.60 : x
  2. Step 2: Convert to fraction form
    259,946.60/389,628.30 = 147,680.60/x
  3. Step 3: Cross multiply
    259,946.60x = 389,628.30 × 147,680.60
  4. Step 4: Simplify right side
    259,946.60x = 57,540,541,120.98
  5. Step 5: Solve for x
    x = 57,540,541,120.98/259,946.60
  6. Step 6: Final answer
    x = 221,355.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.