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Finding the Fourth Proportional to 217,369.89, 326,055.96 and 98,958.42

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Solution

The fourth proportional to 217,369.89, 326,055.96 and 98,958.42 is: 148,438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,369.89 : 326,055.96 = 98,958.42 : x
  2. Step 2: Convert to fraction form
    217,369.89/326,055.96 = 98,958.42/x
  3. Step 3: Cross multiply
    217,369.89x = 326,055.96 × 98,958.42
  4. Step 4: Simplify right side
    217,369.89x = 32,265,982,633.18
  5. Step 5: Solve for x
    x = 32,265,982,633.18/217,369.89
  6. Step 6: Final answer
    x = 148,438.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.