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Finding the Fourth Proportional to 767.56, 1,150.98 and 356.44

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Solution

The fourth proportional to 767.56, 1,150.98 and 356.44 is: 534.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    767.56 : 1,150.98 = 356.44 : x
  2. Step 2: Convert to fraction form
    767.56/1,150.98 = 356.44/x
  3. Step 3: Cross multiply
    767.56x = 1,150.98 × 356.44
  4. Step 4: Simplify right side
    767.56x = 410,255.31
  5. Step 5: Solve for x
    x = 410,255.31/767.56
  6. Step 6: Final answer
    x = 534.49

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Half scale
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Double scale
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Similar ratio
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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.