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Finding the Fourth Proportional to 651.78, 977.62 and 267.02

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Solution

The fourth proportional to 651.78, 977.62 and 267.02 is: 400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.78 : 977.62 = 267.02 : x
  2. Step 2: Convert to fraction form
    651.78/977.62 = 267.02/x
  3. Step 3: Cross multiply
    651.78x = 977.62 × 267.02
  4. Step 4: Simplify right side
    651.78x = 261,044.09
  5. Step 5: Solve for x
    x = 261,044.09/651.78
  6. Step 6: Final answer
    x = 400.51

Related Problems

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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.