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Finding the Fourth Proportional to 511.87, 706.27 and 302.04

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Solution

The fourth proportional to 511.87, 706.27 and 302.04 is: 416.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.87 : 706.27 = 302.04 : x
  2. Step 2: Convert to fraction form
    511.87/706.27 = 302.04/x
  3. Step 3: Cross multiply
    511.87x = 706.27 × 302.04
  4. Step 4: Simplify right side
    511.87x = 213,321.79
  5. Step 5: Solve for x
    x = 213,321.79/511.87
  6. Step 6: Final answer
    x = 416.75

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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.