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Finding the Fourth Proportional to 439, 659.04 and 367.72

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Solution

The fourth proportional to 439, 659.04 and 367.72 is: 552.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    439 : 659.04 = 367.72 : x
  2. Step 2: Convert to fraction form
    439/659.04 = 367.72/x
  3. Step 3: Cross multiply
    439x = 659.04 × 367.72
  4. Step 4: Simplify right side
    439x = 242,342.19
  5. Step 5: Solve for x
    x = 242,342.19/439
  6. Step 6: Final answer
    x = 552.03

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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.