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Finding the Fourth Proportional to 773.11, 1,159.74 and 252.98

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Solution

The fourth proportional to 773.11, 1,159.74 and 252.98 is: 379.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.11 : 1,159.74 = 252.98 : x
  2. Step 2: Convert to fraction form
    773.11/1,159.74 = 252.98/x
  3. Step 3: Cross multiply
    773.11x = 1,159.74 × 252.98
  4. Step 4: Simplify right side
    773.11x = 293,389.58
  5. Step 5: Solve for x
    x = 293,389.58/773.11
  6. Step 6: Final answer
    x = 379.49

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Double scale
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1.5x scale

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.