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Finding the Fourth Proportional to 667.16, 999.14 and 569.10

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Solution

The fourth proportional to 667.16, 999.14 and 569.10 is: 852.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.16 : 999.14 = 569.10 : x
  2. Step 2: Convert to fraction form
    667.16/999.14 = 569.10/x
  3. Step 3: Cross multiply
    667.16x = 999.14 × 569.10
  4. Step 4: Simplify right side
    667.16x = 568,608.67
  5. Step 5: Solve for x
    x = 568,608.67/667.16
  6. Step 6: Final answer
    x = 852.28

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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.