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Finding the Fourth Proportional to 269.01, 400.61 and 262.13

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Solution

The fourth proportional to 269.01, 400.61 and 262.13 is: 390.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.01 : 400.61 = 262.13 : x
  2. Step 2: Convert to fraction form
    269.01/400.61 = 262.13/x
  3. Step 3: Cross multiply
    269.01x = 400.61 × 262.13
  4. Step 4: Simplify right side
    269.01x = 105,008.59
  5. Step 5: Solve for x
    x = 105,008.59/269.01
  6. Step 6: Final answer
    x = 390.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.