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Finding the Fourth Proportional to 523.94, 723.03 and 291.06

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Solution

The fourth proportional to 523.94, 723.03 and 291.06 is: 401.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.94 : 723.03 = 291.06 : x
  2. Step 2: Convert to fraction form
    523.94/723.03 = 291.06/x
  3. Step 3: Cross multiply
    523.94x = 723.03 × 291.06
  4. Step 4: Simplify right side
    523.94x = 210,445.11
  5. Step 5: Solve for x
    x = 210,445.11/523.94
  6. Step 6: Final answer
    x = 401.66

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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.