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Finding the Fourth Proportional to 524.56, 723.90 and 291.68

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Solution

The fourth proportional to 524.56, 723.90 and 291.68 is: 402.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.56 : 723.90 = 291.68 : x
  2. Step 2: Convert to fraction form
    524.56/723.90 = 291.68/x
  3. Step 3: Cross multiply
    524.56x = 723.90 × 291.68
  4. Step 4: Simplify right side
    524.56x = 211,147.15
  5. Step 5: Solve for x
    x = 211,147.15/524.56
  6. Step 6: Final answer
    x = 402.52

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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.