Home / 203,229.23-280,473.55-112,613.61

Finding the Fourth Proportional to 203,229.23, 280,473.55 and 112,613.61

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Solution

The fourth proportional to 203,229.23, 280,473.55 and 112,613.61 is: 155,416.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,229.23 : 280,473.55 = 112,613.61 : x
  2. Step 2: Convert to fraction form
    203,229.23/280,473.55 = 112,613.61/x
  3. Step 3: Cross multiply
    203,229.23x = 280,473.55 × 112,613.61
  4. Step 4: Simplify right side
    203,229.23x = 31,585,140,378.71
  5. Step 5: Solve for x
    x = 31,585,140,378.71/203,229.23
  6. Step 6: Final answer
    x = 155,416.33

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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.