Home / 217,720.24-300,453.70-122,227.12

Finding the Fourth Proportional to 217,720.24, 300,453.70 and 122,227.12

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Solution

The fourth proportional to 217,720.24, 300,453.70 and 122,227.12 is: 168,673.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,720.24 : 300,453.70 = 122,227.12 : x
  2. Step 2: Convert to fraction form
    217,720.24/300,453.70 = 122,227.12/x
  3. Step 3: Cross multiply
    217,720.24x = 300,453.70 × 122,227.12
  4. Step 4: Simplify right side
    217,720.24x = 36,723,590,444.34
  5. Step 5: Solve for x
    x = 36,723,590,444.34/217,720.24
  6. Step 6: Final answer
    x = 168,673.30

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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.