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Finding the Fourth Proportional to 251.83, 347.59 and 153.57

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Solution

The fourth proportional to 251.83, 347.59 and 153.57 is: 211.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.83 : 347.59 = 153.57 : x
  2. Step 2: Convert to fraction form
    251.83/347.59 = 153.57/x
  3. Step 3: Cross multiply
    251.83x = 347.59 × 153.57
  4. Step 4: Simplify right side
    251.83x = 53,379.40
  5. Step 5: Solve for x
    x = 53,379.40/251.83
  6. Step 6: Final answer
    x = 211.97

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.