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Finding the Fourth Proportional to 676.22, 933.12 and 414.18

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Solution

The fourth proportional to 676.22, 933.12 and 414.18 is: 571.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.22 : 933.12 = 414.18 : x
  2. Step 2: Convert to fraction form
    676.22/933.12 = 414.18/x
  3. Step 3: Cross multiply
    676.22x = 933.12 × 414.18
  4. Step 4: Simplify right side
    676.22x = 386,479.64
  5. Step 5: Solve for x
    x = 386,479.64/676.22
  6. Step 6: Final answer
    x = 571.53

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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.