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Finding the Fourth Proportional to 524.31, 723.63 and 303.31

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Solution

The fourth proportional to 524.31, 723.63 and 303.31 is: 418.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.31 : 723.63 = 303.31 : x
  2. Step 2: Convert to fraction form
    524.31/723.63 = 303.31/x
  3. Step 3: Cross multiply
    524.31x = 723.63 × 303.31
  4. Step 4: Simplify right side
    524.31x = 219,484.22
  5. Step 5: Solve for x
    x = 219,484.22/524.31
  6. Step 6: Final answer
    x = 418.62

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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.