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Finding the Fourth Proportional to 321,958.66, 444,280.72 and 178,707.42

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Solution

The fourth proportional to 321,958.66, 444,280.72 and 178,707.42 is: 246,603.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,958.66 : 444,280.72 = 178,707.42 : x
  2. Step 2: Convert to fraction form
    321,958.66/444,280.72 = 178,707.42/x
  3. Step 3: Cross multiply
    321,958.66x = 444,280.72 × 178,707.42
  4. Step 4: Simplify right side
    321,958.66x = 79,396,260,780.17
  5. Step 5: Solve for x
    x = 79,396,260,780.17/321,958.66
  6. Step 6: Final answer
    x = 246,603.90

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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.