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Finding the Fourth Proportional to 515.04, 772.68 and 226.68

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Solution

The fourth proportional to 515.04, 772.68 and 226.68 is: 340.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    515.04 : 772.68 = 226.68 : x
  2. Step 2: Convert to fraction form
    515.04/772.68 = 226.68/x
  3. Step 3: Cross multiply
    515.04x = 772.68 × 226.68
  4. Step 4: Simplify right side
    515.04x = 175,151.10
  5. Step 5: Solve for x
    x = 175,151.10/515.04
  6. Step 6: Final answer
    x = 340.07

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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.