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Finding the Fourth Proportional to 517.44, 776.21 and 152.27

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Solution

The fourth proportional to 517.44, 776.21 and 152.27 is: 228.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.44 : 776.21 = 152.27 : x
  2. Step 2: Convert to fraction form
    517.44/776.21 = 152.27/x
  3. Step 3: Cross multiply
    517.44x = 776.21 × 152.27
  4. Step 4: Simplify right side
    517.44x = 118,193.50
  5. Step 5: Solve for x
    x = 118,193.50/517.44
  6. Step 6: Final answer
    x = 228.42

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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.