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Finding the Fourth Proportional to 655.36, 981.06 and 567.88

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Solution

The fourth proportional to 655.36, 981.06 and 567.88 is: 850.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.36 : 981.06 = 567.88 : x
  2. Step 2: Convert to fraction form
    655.36/981.06 = 567.88/x
  3. Step 3: Cross multiply
    655.36x = 981.06 × 567.88
  4. Step 4: Simplify right side
    655.36x = 557,124.35
  5. Step 5: Solve for x
    x = 557,124.35/655.36
  6. Step 6: Final answer
    x = 850.10

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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.