Home / 263,287.80-363,336.06-142,428.78

Finding the Fourth Proportional to 263,287.80, 363,336.06 and 142,428.78

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Solution

The fourth proportional to 263,287.80, 363,336.06 and 142,428.78 is: 196,551.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,287.80 : 363,336.06 = 142,428.78 : x
  2. Step 2: Convert to fraction form
    263,287.80/363,336.06 = 142,428.78/x
  3. Step 3: Cross multiply
    263,287.80x = 363,336.06 × 142,428.78
  4. Step 4: Simplify right side
    263,287.80x = 51,749,512,170.01
  5. Step 5: Solve for x
    x = 51,749,512,170.01/263,287.80
  6. Step 6: Final answer
    x = 196,551.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.