Home / 217,716.82-300,428.67-122,204.86

Finding the Fourth Proportional to 217,716.82, 300,428.67 and 122,204.86

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Solution

The fourth proportional to 217,716.82, 300,428.67 and 122,204.86 is: 168,631.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,716.82 : 300,428.67 = 122,204.86 : x
  2. Step 2: Convert to fraction form
    217,716.82/300,428.67 = 122,204.86/x
  3. Step 3: Cross multiply
    217,716.82x = 300,428.67 × 122,204.86
  4. Step 4: Simplify right side
    217,716.82x = 36,713,843,557.34
  5. Step 5: Solve for x
    x = 36,713,843,557.34/217,716.82
  6. Step 6: Final answer
    x = 168,631.18

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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.