Home / 217,625.46-300,329.10-122,138.07

Finding the Fourth Proportional to 217,625.46, 300,329.10 and 122,138.07

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Solution

The fourth proportional to 217,625.46, 300,329.10 and 122,138.07 is: 168,553.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,625.46 : 300,329.10 = 122,138.07 : x
  2. Step 2: Convert to fraction form
    217,625.46/300,329.10 = 122,138.07/x
  3. Step 3: Cross multiply
    217,625.46x = 300,329.10 × 122,138.07
  4. Step 4: Simplify right side
    217,625.46x = 36,681,616,638.84
  5. Step 5: Solve for x
    x = 36,681,616,638.84/217,625.46
  6. Step 6: Final answer
    x = 168,553.88

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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.