Home / 279,811.28-419,495.16-146,666

Finding the Fourth Proportional to 279,811.28, 419,495.16 and 146,666

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Solution

The fourth proportional to 279,811.28, 419,495.16 and 146,666 is: 219,882.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,811.28 : 419,495.16 = 146,666 : x
  2. Step 2: Convert to fraction form
    279,811.28/419,495.16 = 146,666/x
  3. Step 3: Cross multiply
    279,811.28x = 419,495.16 × 146,666
  4. Step 4: Simplify right side
    279,811.28x = 61,525,677,136.56
  5. Step 5: Solve for x
    x = 61,525,677,136.56/279,811.28
  6. Step 6: Final answer
    x = 219,882.76

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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.