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Finding the Fourth Proportional to 349.35, 524.57 and 187.35

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Solution

The fourth proportional to 349.35, 524.57 and 187.35 is: 281.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.35 : 524.57 = 187.35 : x
  2. Step 2: Convert to fraction form
    349.35/524.57 = 187.35/x
  3. Step 3: Cross multiply
    349.35x = 524.57 × 187.35
  4. Step 4: Simplify right side
    349.35x = 98,277.25
  5. Step 5: Solve for x
    x = 98,277.25/349.35
  6. Step 6: Final answer
    x = 281.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.