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Finding the Fourth Proportional to 524.07, 723.21 and 291.24

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Solution

The fourth proportional to 524.07, 723.21 and 291.24 is: 401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.07 : 723.21 = 291.24 : x
  2. Step 2: Convert to fraction form
    524.07/723.21 = 291.24/x
  3. Step 3: Cross multiply
    524.07x = 723.21 × 291.24
  4. Step 4: Simplify right side
    524.07x = 210,624.06
  5. Step 5: Solve for x
    x = 210,624.06/524.07
  6. Step 6: Final answer
    x = 401.90

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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.