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Finding the Fourth Proportional to 400.77, 601.56 and 270.36

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Solution

The fourth proportional to 400.77, 601.56 and 270.36 is: 405.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.77 : 601.56 = 270.36 : x
  2. Step 2: Convert to fraction form
    400.77/601.56 = 270.36/x
  3. Step 3: Cross multiply
    400.77x = 601.56 × 270.36
  4. Step 4: Simplify right side
    400.77x = 162,637.76
  5. Step 5: Solve for x
    x = 162,637.76/400.77
  6. Step 6: Final answer
    x = 405.81

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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.