Home / 262,885.20-394,385.40-129,829.20

Finding the Fourth Proportional to 262,885.20, 394,385.40 and 129,829.20

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Solution

The fourth proportional to 262,885.20, 394,385.40 and 129,829.20 is: 194,772.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,885.20 : 394,385.40 = 129,829.20 : x
  2. Step 2: Convert to fraction form
    262,885.20/394,385.40 = 129,829.20/x
  3. Step 3: Cross multiply
    262,885.20x = 394,385.40 × 129,829.20
  4. Step 4: Simplify right side
    262,885.20x = 51,202,740,973.68
  5. Step 5: Solve for x
    x = 51,202,740,973.68/262,885.20
  6. Step 6: Final answer
    x = 194,772.25

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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.