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Finding the Fourth Proportional to 431.83, 595.79 and 266.09

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Solution

The fourth proportional to 431.83, 595.79 and 266.09 is: 367.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    431.83 : 595.79 = 266.09 : x
  2. Step 2: Convert to fraction form
    431.83/595.79 = 266.09/x
  3. Step 3: Cross multiply
    431.83x = 595.79 × 266.09
  4. Step 4: Simplify right side
    431.83x = 158,530.45
  5. Step 5: Solve for x
    x = 158,530.45/431.83
  6. Step 6: Final answer
    x = 367.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.