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Finding the Fourth Proportional to 482.58, 666.26 and 371.84

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Solution

The fourth proportional to 482.58, 666.26 and 371.84 is: 513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.58 : 666.26 = 371.84 : x
  2. Step 2: Convert to fraction form
    482.58/666.26 = 371.84/x
  3. Step 3: Cross multiply
    482.58x = 666.26 × 371.84
  4. Step 4: Simplify right side
    482.58x = 247,742.12
  5. Step 5: Solve for x
    x = 247,742.12/482.58
  6. Step 6: Final answer
    x = 513.37

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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.