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Finding the Fourth Proportional to 440.07, 607.19 and 329.64

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Solution

The fourth proportional to 440.07, 607.19 and 329.64 is: 454.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.07 : 607.19 = 329.64 : x
  2. Step 2: Convert to fraction form
    440.07/607.19 = 329.64/x
  3. Step 3: Cross multiply
    440.07x = 607.19 × 329.64
  4. Step 4: Simplify right side
    440.07x = 200,151.90
  5. Step 5: Solve for x
    x = 200,151.90/440.07
  6. Step 6: Final answer
    x = 454.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.