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Finding the Fourth Proportional to 444.00, 666.08 and 261.30

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Solution

The fourth proportional to 444.00, 666.08 and 261.30 is: 391.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.00 : 666.08 = 261.30 : x
  2. Step 2: Convert to fraction form
    444.00/666.08 = 261.30/x
  3. Step 3: Cross multiply
    444.00x = 666.08 × 261.30
  4. Step 4: Simplify right side
    444.00x = 174,043.88
  5. Step 5: Solve for x
    x = 174,043.88/444.00
  6. Step 6: Final answer
    x = 391.99

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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.