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Finding the Fourth Proportional to 1,340.99, 2,011.59 and 367.07

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Solution

The fourth proportional to 1,340.99, 2,011.59 and 367.07 is: 550.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.99 : 2,011.59 = 367.07 : x
  2. Step 2: Convert to fraction form
    1,340.99/2,011.59 = 367.07/x
  3. Step 3: Cross multiply
    1,340.99x = 2,011.59 × 367.07
  4. Step 4: Simplify right side
    1,340.99x = 738,394.34
  5. Step 5: Solve for x
    x = 738,394.34/1,340.99
  6. Step 6: Final answer
    x = 550.63

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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.