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Finding the Fourth Proportional to 524.21, 723.03 and 400.17

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Solution

The fourth proportional to 524.21, 723.03 and 400.17 is: 551.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.21 : 723.03 = 400.17 : x
  2. Step 2: Convert to fraction form
    524.21/723.03 = 400.17/x
  3. Step 3: Cross multiply
    524.21x = 723.03 × 400.17
  4. Step 4: Simplify right side
    524.21x = 289,336.13
  5. Step 5: Solve for x
    x = 289,336.13/524.21
  6. Step 6: Final answer
    x = 551.95

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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.