Home / 217,555.82-300,226.74-122,071.40

Finding the Fourth Proportional to 217,555.82, 300,226.74 and 122,071.40

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Solution

The fourth proportional to 217,555.82, 300,226.74 and 122,071.40 is: 168,458.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,555.82 : 300,226.74 = 122,071.40 : x
  2. Step 2: Convert to fraction form
    217,555.82/300,226.74 = 122,071.40/x
  3. Step 3: Cross multiply
    217,555.82x = 300,226.74 × 122,071.40
  4. Step 4: Simplify right side
    217,555.82x = 36,649,098,469.24
  5. Step 5: Solve for x
    x = 36,649,098,469.24/217,555.82
  6. Step 6: Final answer
    x = 168,458.37

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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.