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Finding the Fourth Proportional to 263,356.12, 393,994.80 and 202,926.79

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Solution

The fourth proportional to 263,356.12, 393,994.80 and 202,926.79 is: 303,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,356.12 : 393,994.80 = 202,926.79 : x
  2. Step 2: Convert to fraction form
    263,356.12/393,994.80 = 202,926.79/x
  3. Step 3: Cross multiply
    263,356.12x = 393,994.80 × 202,926.79
  4. Step 4: Simplify right side
    263,356.12x = 79,952,100,040.69
  5. Step 5: Solve for x
    x = 79,952,100,040.69/263,356.12
  6. Step 6: Final answer
    x = 303,589.30

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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.