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Finding the Fourth Proportional to 381.48, 569.46 and 335.35

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Solution

The fourth proportional to 381.48, 569.46 and 335.35 is: 500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.48 : 569.46 = 335.35 : x
  2. Step 2: Convert to fraction form
    381.48/569.46 = 335.35/x
  3. Step 3: Cross multiply
    381.48x = 569.46 × 335.35
  4. Step 4: Simplify right side
    381.48x = 190,968.41
  5. Step 5: Solve for x
    x = 190,968.41/381.48
  6. Step 6: Final answer
    x = 500.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.