Home / 203,286.20-280,530.76-112,641.37

Finding the Fourth Proportional to 203,286.20, 280,530.76 and 112,641.37

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Solution

The fourth proportional to 203,286.20, 280,530.76 and 112,641.37 is: 155,442.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,286.20 : 280,530.76 = 112,641.37 : x
  2. Step 2: Convert to fraction form
    203,286.20/280,530.76 = 112,641.37/x
  3. Step 3: Cross multiply
    203,286.20x = 280,530.76 × 112,641.37
  4. Step 4: Simplify right side
    203,286.20x = 31,599,369,561.00
  5. Step 5: Solve for x
    x = 31,599,369,561.00/203,286.20
  6. Step 6: Final answer
    x = 155,442.77

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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.