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Finding the Fourth Proportional to 519.58, 779.46 and 194.97

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Solution

The fourth proportional to 519.58, 779.46 and 194.97 is: 292.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.58 : 779.46 = 194.97 : x
  2. Step 2: Convert to fraction form
    519.58/779.46 = 194.97/x
  3. Step 3: Cross multiply
    519.58x = 779.46 × 194.97
  4. Step 4: Simplify right side
    519.58x = 151,973.51
  5. Step 5: Solve for x
    x = 151,973.51/519.58
  6. Step 6: Final answer
    x = 292.49

Related Problems

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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.