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Finding the Fourth Proportional to 285.08, 393.48 and 174.59

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Solution

The fourth proportional to 285.08, 393.48 and 174.59 is: 240.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    285.08 : 393.48 = 174.59 : x
  2. Step 2: Convert to fraction form
    285.08/393.48 = 174.59/x
  3. Step 3: Cross multiply
    285.08x = 393.48 × 174.59
  4. Step 4: Simplify right side
    285.08x = 68,698.66
  5. Step 5: Solve for x
    x = 68,698.66/285.08
  6. Step 6: Final answer
    x = 240.98

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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.