Home / 226,888.44-312,430.78-221,853.66

Finding the Fourth Proportional to 226,888.44, 312,430.78 and 221,853.66

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Solution

The fourth proportional to 226,888.44, 312,430.78 and 221,853.66 is: 305,497.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,888.44 : 312,430.78 = 221,853.66 : x
  2. Step 2: Convert to fraction form
    226,888.44/312,430.78 = 221,853.66/x
  3. Step 3: Cross multiply
    226,888.44x = 312,430.78 × 221,853.66
  4. Step 4: Simplify right side
    226,888.44x = 69,313,912,039.65
  5. Step 5: Solve for x
    x = 69,313,912,039.65/226,888.44
  6. Step 6: Final answer
    x = 305,497.77

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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.