Home / 226,019.15-311,920.43-149,405.35

Finding the Fourth Proportional to 226,019.15, 311,920.43 and 149,405.35

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Solution

The fourth proportional to 226,019.15, 311,920.43 and 149,405.35 is: 206,188.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,019.15 : 311,920.43 = 149,405.35 : x
  2. Step 2: Convert to fraction form
    226,019.15/311,920.43 = 149,405.35/x
  3. Step 3: Cross multiply
    226,019.15x = 311,920.43 × 149,405.35
  4. Step 4: Simplify right side
    226,019.15x = 46,602,581,016.30
  5. Step 5: Solve for x
    x = 46,602,581,016.30/226,019.15
  6. Step 6: Final answer
    x = 206,188.64

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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.