Home / 217,719.49-300,452.68-122,226.36

Finding the Fourth Proportional to 217,719.49, 300,452.68 and 122,226.36

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Solution

The fourth proportional to 217,719.49, 300,452.68 and 122,226.36 is: 168,672.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,719.49 : 300,452.68 = 122,226.36 : x
  2. Step 2: Convert to fraction form
    217,719.49/300,452.68 = 122,226.36/x
  3. Step 3: Cross multiply
    217,719.49x = 300,452.68 × 122,226.36
  4. Step 4: Simplify right side
    217,719.49x = 36,723,237,428.64
  5. Step 5: Solve for x
    x = 36,723,237,428.64/217,719.49
  6. Step 6: Final answer
    x = 168,672.26

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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.