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Finding the Fourth Proportional to 474.01, 709.49 and 254.08

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Solution

The fourth proportional to 474.01, 709.49 and 254.08 is: 380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.01 : 709.49 = 254.08 : x
  2. Step 2: Convert to fraction form
    474.01/709.49 = 254.08/x
  3. Step 3: Cross multiply
    474.01x = 709.49 × 254.08
  4. Step 4: Simplify right side
    474.01x = 180,267.22
  5. Step 5: Solve for x
    x = 180,267.22/474.01
  6. Step 6: Final answer
    x = 380.30

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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.