Home / 203,219.28-280,438.92-112,574.97

Finding the Fourth Proportional to 203,219.28, 280,438.92 and 112,574.97

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Solution

The fourth proportional to 203,219.28, 280,438.92 and 112,574.97 is: 155,351.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,219.28 : 280,438.92 = 112,574.97 : x
  2. Step 2: Convert to fraction form
    203,219.28/280,438.92 = 112,574.97/x
  3. Step 3: Cross multiply
    203,219.28x = 280,438.92 × 112,574.97
  4. Step 4: Simplify right side
    203,219.28x = 31,570,403,005.83
  5. Step 5: Solve for x
    x = 31,570,403,005.83/203,219.28
  6. Step 6: Final answer
    x = 155,351.42

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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.