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Finding the Fourth Proportional to 548.68, 823.14 and 260.12

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Solution

The fourth proportional to 548.68, 823.14 and 260.12 is: 390.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.68 : 823.14 = 260.12 : x
  2. Step 2: Convert to fraction form
    548.68/823.14 = 260.12/x
  3. Step 3: Cross multiply
    548.68x = 823.14 × 260.12
  4. Step 4: Simplify right side
    548.68x = 214,115.18
  5. Step 5: Solve for x
    x = 214,115.18/548.68
  6. Step 6: Final answer
    x = 390.24

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.