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Finding the Fourth Proportional to 201,873.57, 278,585.79 and 109,992.42

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Solution

The fourth proportional to 201,873.57, 278,585.79 and 109,992.42 is: 151,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,873.57 : 278,585.79 = 109,992.42 : x
  2. Step 2: Convert to fraction form
    201,873.57/278,585.79 = 109,992.42/x
  3. Step 3: Cross multiply
    201,873.57x = 278,585.79 × 109,992.42
  4. Step 4: Simplify right side
    201,873.57x = 30,642,325,219.71
  5. Step 5: Solve for x
    x = 30,642,325,219.71/201,873.57
  6. Step 6: Final answer
    x = 151,789.68

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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.