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Finding the Fourth Proportional to 217,954.56, 326,862.72 and 70,176

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Solution

The fourth proportional to 217,954.56, 326,862.72 and 70,176 is: 105,241.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,954.56 : 326,862.72 = 70,176 : x
  2. Step 2: Convert to fraction form
    217,954.56/326,862.72 = 70,176/x
  3. Step 3: Cross multiply
    217,954.56x = 326,862.72 × 70,176
  4. Step 4: Simplify right side
    217,954.56x = 22,937,918,238.72
  5. Step 5: Solve for x
    x = 22,937,918,238.72/217,954.56
  6. Step 6: Final answer
    x = 105,241.75

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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.