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Finding the Fourth Proportional to 261.66, 362.73 and 245.10

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Solution

The fourth proportional to 261.66, 362.73 and 245.10 is: 339.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    261.66 : 362.73 = 245.10 : x
  2. Step 2: Convert to fraction form
    261.66/362.73 = 245.10/x
  3. Step 3: Cross multiply
    261.66x = 362.73 × 245.10
  4. Step 4: Simplify right side
    261.66x = 88,905.12
  5. Step 5: Solve for x
    x = 88,905.12/261.66
  6. Step 6: Final answer
    x = 339.77

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.