Home / 272,212.20-408,318.30-188,231.40

Finding the Fourth Proportional to 272,212.20, 408,318.30 and 188,231.40

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Solution

The fourth proportional to 272,212.20, 408,318.30 and 188,231.40 is: 282,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,212.20 : 408,318.30 = 188,231.40 : x
  2. Step 2: Convert to fraction form
    272,212.20/408,318.30 = 188,231.40/x
  3. Step 3: Cross multiply
    272,212.20x = 408,318.30 × 188,231.40
  4. Step 4: Simplify right side
    272,212.20x = 76,858,325,254.62
  5. Step 5: Solve for x
    x = 76,858,325,254.62/272,212.20
  6. Step 6: Final answer
    x = 282,347.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.