Home / 259,974.80-389,962.20-148,000.40

Finding the Fourth Proportional to 259,974.80, 389,962.20 and 148,000.40

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Solution

The fourth proportional to 259,974.80, 389,962.20 and 148,000.40 is: 222,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,974.80 : 389,962.20 = 148,000.40 : x
  2. Step 2: Convert to fraction form
    259,974.80/389,962.20 = 148,000.40/x
  3. Step 3: Cross multiply
    259,974.80x = 389,962.20 × 148,000.40
  4. Step 4: Simplify right side
    259,974.80x = 57,714,561,584.88
  5. Step 5: Solve for x
    x = 57,714,561,584.88/259,974.80
  6. Step 6: Final answer
    x = 222,000.60

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1.5x scale

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.