Home / 262,851.20-394,017.60-129,622.40

Finding the Fourth Proportional to 262,851.20, 394,017.60 and 129,622.40

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Solution

The fourth proportional to 262,851.20, 394,017.60 and 129,622.40 is: 194,305.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,851.20 : 394,017.60 = 129,622.40 : x
  2. Step 2: Convert to fraction form
    262,851.20/394,017.60 = 129,622.40/x
  3. Step 3: Cross multiply
    262,851.20x = 394,017.60 × 129,622.40
  4. Step 4: Simplify right side
    262,851.20x = 51,073,506,954.24
  5. Step 5: Solve for x
    x = 51,073,506,954.24/262,851.20
  6. Step 6: Final answer
    x = 194,305.78

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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.