Home / 203,223.26-280,448.06-112,585.11

Finding the Fourth Proportional to 203,223.26, 280,448.06 and 112,585.11

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Solution

The fourth proportional to 203,223.26, 280,448.06 and 112,585.11 is: 155,367.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,223.26 : 280,448.06 = 112,585.11 : x
  2. Step 2: Convert to fraction form
    203,223.26/280,448.06 = 112,585.11/x
  3. Step 3: Cross multiply
    203,223.26x = 280,448.06 × 112,585.11
  4. Step 4: Simplify right side
    203,223.26x = 31,574,275,121.46
  5. Step 5: Solve for x
    x = 31,574,275,121.46/203,223.26
  6. Step 6: Final answer
    x = 155,367.43

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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.