Home / 217,764.87-300,515.29-122,271.94

Finding the Fourth Proportional to 217,764.87, 300,515.29 and 122,271.94

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Solution

The fourth proportional to 217,764.87, 300,515.29 and 122,271.94 is: 168,735.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,764.87 : 300,515.29 = 122,271.94 : x
  2. Step 2: Convert to fraction form
    217,764.87/300,515.29 = 122,271.94/x
  3. Step 3: Cross multiply
    217,764.87x = 300,515.29 × 122,271.94
  4. Step 4: Simplify right side
    217,764.87x = 36,744,587,507.96
  5. Step 5: Solve for x
    x = 36,744,587,507.96/217,764.87
  6. Step 6: Final answer
    x = 168,735.15

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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.