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Finding the Fourth Proportional to 279,606.13, 419,410.51 and 119,658.67

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Solution

The fourth proportional to 279,606.13, 419,410.51 and 119,658.67 is: 179,488.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,606.13 : 419,410.51 = 119,658.67 : x
  2. Step 2: Convert to fraction form
    279,606.13/419,410.51 = 119,658.67/x
  3. Step 3: Cross multiply
    279,606.13x = 419,410.51 × 119,658.67
  4. Step 4: Simplify right side
    279,606.13x = 50,186,102,462.95
  5. Step 5: Solve for x
    x = 50,186,102,462.95/279,606.13
  6. Step 6: Final answer
    x = 179,488.56

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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.