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Finding the Fourth Proportional to 263,315.60, 394,973.40 and 168,837.20

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Solution

The fourth proportional to 263,315.60, 394,973.40 and 168,837.20 is: 253,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,315.60 : 394,973.40 = 168,837.20 : x
  2. Step 2: Convert to fraction form
    263,315.60/394,973.40 = 168,837.20/x
  3. Step 3: Cross multiply
    263,315.60x = 394,973.40 × 168,837.20
  4. Step 4: Simplify right side
    263,315.60x = 66,686,202,930.48
  5. Step 5: Solve for x
    x = 66,686,202,930.48/263,315.60
  6. Step 6: Final answer
    x = 253,255.80

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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.