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Finding the Fourth Proportional to 482.85, 666.11 and 296.26

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Solution

The fourth proportional to 482.85, 666.11 and 296.26 is: 408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.85 : 666.11 = 296.26 : x
  2. Step 2: Convert to fraction form
    482.85/666.11 = 296.26/x
  3. Step 3: Cross multiply
    482.85x = 666.11 × 296.26
  4. Step 4: Simplify right side
    482.85x = 197,341.75
  5. Step 5: Solve for x
    x = 197,341.75/482.85
  6. Step 6: Final answer
    x = 408.70

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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.