Home / 263,012.20-393,999.90-157,517.80

Finding the Fourth Proportional to 263,012.20, 393,999.90 and 157,517.80

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Solution

The fourth proportional to 263,012.20, 393,999.90 and 157,517.80 is: 235,966.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,012.20 : 393,999.90 = 157,517.80 : x
  2. Step 2: Convert to fraction form
    263,012.20/393,999.90 = 157,517.80/x
  3. Step 3: Cross multiply
    263,012.20x = 393,999.90 × 157,517.80
  4. Step 4: Simplify right side
    263,012.20x = 62,061,997,448.22
  5. Step 5: Solve for x
    x = 62,061,997,448.22/263,012.20
  6. Step 6: Final answer
    x = 235,966.23

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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.