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Finding the Fourth Proportional to 524.38, 723.64 and 317.38

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Solution

The fourth proportional to 524.38, 723.64 and 317.38 is: 437.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.38 : 723.64 = 317.38 : x
  2. Step 2: Convert to fraction form
    524.38/723.64 = 317.38/x
  3. Step 3: Cross multiply
    524.38x = 723.64 × 317.38
  4. Step 4: Simplify right side
    524.38x = 229,664.45
  5. Step 5: Solve for x
    x = 229,664.45/524.38
  6. Step 6: Final answer
    x = 437.98

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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.