Home / 274,949.20-412,423.80-212,741.20

Finding the Fourth Proportional to 274,949.20, 412,423.80 and 212,741.20

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Solution

The fourth proportional to 274,949.20, 412,423.80 and 212,741.20 is: 319,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,949.20 : 412,423.80 = 212,741.20 : x
  2. Step 2: Convert to fraction form
    274,949.20/412,423.80 = 212,741.20/x
  3. Step 3: Cross multiply
    274,949.20x = 412,423.80 × 212,741.20
  4. Step 4: Simplify right side
    274,949.20x = 87,739,534,120.56
  5. Step 5: Solve for x
    x = 87,739,534,120.56/274,949.20
  6. Step 6: Final answer
    x = 319,111.80

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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.