Home / 263,264.20-394,781.10-105,440.20

Finding the Fourth Proportional to 263,264.20, 394,781.10 and 105,440.20

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Solution

The fourth proportional to 263,264.20, 394,781.10 and 105,440.20 is: 158,114.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,264.20 : 394,781.10 = 105,440.20 : x
  2. Step 2: Convert to fraction form
    263,264.20/394,781.10 = 105,440.20/x
  3. Step 3: Cross multiply
    263,264.20x = 394,781.10 × 105,440.20
  4. Step 4: Simplify right side
    263,264.20x = 41,625,798,140.22
  5. Step 5: Solve for x
    x = 41,625,798,140.22/263,264.20
  6. Step 6: Final answer
    x = 158,114.16

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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.