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Finding the Fourth Proportional to 505.01, 757.37 and 216.38

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Solution

The fourth proportional to 505.01, 757.37 and 216.38 is: 324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.01 : 757.37 = 216.38 : x
  2. Step 2: Convert to fraction form
    505.01/757.37 = 216.38/x
  3. Step 3: Cross multiply
    505.01x = 757.37 × 216.38
  4. Step 4: Simplify right side
    505.01x = 163,874.85
  5. Step 5: Solve for x
    x = 163,874.85/505.01
  6. Step 6: Final answer
    x = 324.50

Related Problems

Find fourth proportional to 252.50, 378.68 and 108.19
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Double scale
Find fourth proportional to 506.01, 758.86 and 217.38
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.