Home / 279,839.57-419,628.10-102,222.36

Finding the Fourth Proportional to 279,839.57, 419,628.10 and 102,222.36

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Solution

The fourth proportional to 279,839.57, 419,628.10 and 102,222.36 is: 153,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,839.57 : 419,628.10 = 102,222.36 : x
  2. Step 2: Convert to fraction form
    279,839.57/419,628.10 = 102,222.36/x
  3. Step 3: Cross multiply
    279,839.57x = 419,628.10 × 102,222.36
  4. Step 4: Simplify right side
    279,839.57x = 42,895,374,448.76
  5. Step 5: Solve for x
    x = 42,895,374,448.76/279,839.57
  6. Step 6: Final answer
    x = 153,285.60

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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.