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Finding the Fourth Proportional to 558.76, 837.67 and 266.10

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Solution

The fourth proportional to 558.76, 837.67 and 266.10 is: 398.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.76 : 837.67 = 266.10 : x
  2. Step 2: Convert to fraction form
    558.76/837.67 = 266.10/x
  3. Step 3: Cross multiply
    558.76x = 837.67 × 266.10
  4. Step 4: Simplify right side
    558.76x = 222,899.13
  5. Step 5: Solve for x
    x = 222,899.13/558.76
  6. Step 6: Final answer
    x = 398.92

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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.