Home / 203,211.14-280,433.61-112,568.49

Finding the Fourth Proportional to 203,211.14, 280,433.61 and 112,568.49

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Solution

The fourth proportional to 203,211.14, 280,433.61 and 112,568.49 is: 155,345.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,211.14 : 280,433.61 = 112,568.49 : x
  2. Step 2: Convert to fraction form
    203,211.14/280,433.61 = 112,568.49/x
  3. Step 3: Cross multiply
    203,211.14x = 280,433.61 × 112,568.49
  4. Step 4: Simplify right side
    203,211.14x = 31,567,988,022.95
  5. Step 5: Solve for x
    x = 31,567,988,022.95/203,211.14
  6. Step 6: Final answer
    x = 155,345.76

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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.