Home / 279,840.07-419,628.85-102,222.86

Finding the Fourth Proportional to 279,840.07, 419,628.85 and 102,222.86

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Solution

The fourth proportional to 279,840.07, 419,628.85 and 102,222.86 is: 153,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,840.07 : 419,628.85 = 102,222.86 : x
  2. Step 2: Convert to fraction form
    279,840.07/419,628.85 = 102,222.86/x
  3. Step 3: Cross multiply
    279,840.07x = 419,628.85 × 102,222.86
  4. Step 4: Simplify right side
    279,840.07x = 42,895,660,674.40
  5. Step 5: Solve for x
    x = 42,895,660,674.40/279,840.07
  6. Step 6: Final answer
    x = 153,286.34

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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.