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Finding the Fourth Proportional to 400.30, 551.95 and 295.47

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Solution

The fourth proportional to 400.30, 551.95 and 295.47 is: 407.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.30 : 551.95 = 295.47 : x
  2. Step 2: Convert to fraction form
    400.30/551.95 = 295.47/x
  3. Step 3: Cross multiply
    400.30x = 551.95 × 295.47
  4. Step 4: Simplify right side
    400.30x = 163,083.93
  5. Step 5: Solve for x
    x = 163,083.93/400.30
  6. Step 6: Final answer
    x = 407.41

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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.