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Finding the Fourth Proportional to 1,645.02, 2,467.16 and 475.02

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Solution

The fourth proportional to 1,645.02, 2,467.16 and 475.02 is: 712.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.02 : 2,467.16 = 475.02 : x
  2. Step 2: Convert to fraction form
    1,645.02/2,467.16 = 475.02/x
  3. Step 3: Cross multiply
    1,645.02x = 2,467.16 × 475.02
  4. Step 4: Simplify right side
    1,645.02x = 1,171,950.34
  5. Step 5: Solve for x
    x = 1,171,950.34/1,645.02
  6. Step 6: Final answer
    x = 712.42

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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.