Home / 217,812.42-326,634.39-75,615.30

Finding the Fourth Proportional to 217,812.42, 326,634.39 and 75,615.30

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Solution

The fourth proportional to 217,812.42, 326,634.39 and 75,615.30 is: 113,393.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,812.42 : 326,634.39 = 75,615.30 : x
  2. Step 2: Convert to fraction form
    217,812.42/326,634.39 = 75,615.30/x
  3. Step 3: Cross multiply
    217,812.42x = 326,634.39 × 75,615.30
  4. Step 4: Simplify right side
    217,812.42x = 24,698,557,390.17
  5. Step 5: Solve for x
    x = 24,698,557,390.17/217,812.42
  6. Step 6: Final answer
    x = 113,393.71

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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.