Home / 263,478.27-363,809.61-243,327.78

Finding the Fourth Proportional to 263,478.27, 363,809.61 and 243,327.78

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Solution

The fourth proportional to 263,478.27, 363,809.61 and 243,327.78 is: 335,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,478.27 : 363,809.61 = 243,327.78 : x
  2. Step 2: Convert to fraction form
    263,478.27/363,809.61 = 243,327.78/x
  3. Step 3: Cross multiply
    263,478.27x = 363,809.61 × 243,327.78
  4. Step 4: Simplify right side
    263,478.27x = 88,524,984,743.97
  5. Step 5: Solve for x
    x = 88,524,984,743.97/263,478.27
  6. Step 6: Final answer
    x = 335,985.90

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1.5x scale

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.