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Finding the Fourth Proportional to 203,359.88, 280,653.44 and 112,744.27

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Solution

The fourth proportional to 203,359.88, 280,653.44 and 112,744.27 is: 155,596.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,359.88 : 280,653.44 = 112,744.27 : x
  2. Step 2: Convert to fraction form
    203,359.88/280,653.44 = 112,744.27/x
  3. Step 3: Cross multiply
    203,359.88x = 280,653.44 × 112,744.27
  4. Step 4: Simplify right side
    203,359.88x = 31,642,067,637.07
  5. Step 5: Solve for x
    x = 31,642,067,637.07/203,359.88
  6. Step 6: Final answer
    x = 155,596.41

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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.