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Finding the Fourth Proportional to 551.01, 826.52 and 307.40

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Solution

The fourth proportional to 551.01, 826.52 and 307.40 is: 461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.01 : 826.52 = 307.40 : x
  2. Step 2: Convert to fraction form
    551.01/826.52 = 307.40/x
  3. Step 3: Cross multiply
    551.01x = 826.52 × 307.40
  4. Step 4: Simplify right side
    551.01x = 254,072.78
  5. Step 5: Solve for x
    x = 254,072.78/551.01
  6. Step 6: Final answer
    x = 461.10

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Double scale
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Similar ratio
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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.