Home / 259,541.80-389,043.90-140,962.60

Finding the Fourth Proportional to 259,541.80, 389,043.90 and 140,962.60

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Solution

The fourth proportional to 259,541.80, 389,043.90 and 140,962.60 is: 211,297.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,541.80 : 389,043.90 = 140,962.60 : x
  2. Step 2: Convert to fraction form
    259,541.80/389,043.90 = 140,962.60/x
  3. Step 3: Cross multiply
    259,541.80x = 389,043.90 × 140,962.60
  4. Step 4: Simplify right side
    259,541.80x = 54,840,639,658.14
  5. Step 5: Solve for x
    x = 54,840,639,658.14/259,541.80
  6. Step 6: Final answer
    x = 211,297.91

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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.