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Finding the Fourth Proportional to 689.35, 950.10 and 468.22

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Solution

The fourth proportional to 689.35, 950.10 and 468.22 is: 645.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    689.35 : 950.10 = 468.22 : x
  2. Step 2: Convert to fraction form
    689.35/950.10 = 468.22/x
  3. Step 3: Cross multiply
    689.35x = 950.10 × 468.22
  4. Step 4: Simplify right side
    689.35x = 444,855.82
  5. Step 5: Solve for x
    x = 444,855.82/689.35
  6. Step 6: Final answer
    x = 645.33

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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.