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Finding the Fourth Proportional to 666.17, 919.33 and 367.44

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Solution

The fourth proportional to 666.17, 919.33 and 367.44 is: 507.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    666.17 : 919.33 = 367.44 : x
  2. Step 2: Convert to fraction form
    666.17/919.33 = 367.44/x
  3. Step 3: Cross multiply
    666.17x = 919.33 × 367.44
  4. Step 4: Simplify right side
    666.17x = 337,797.70
  5. Step 5: Solve for x
    x = 337,797.70/666.17
  6. Step 6: Final answer
    x = 507.08

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1.5x scale

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.