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Finding the Fourth Proportional to 346.44, 520.74 and 250.68

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Solution

The fourth proportional to 346.44, 520.74 and 250.68 is: 376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.44 : 520.74 = 250.68 : x
  2. Step 2: Convert to fraction form
    346.44/520.74 = 250.68/x
  3. Step 3: Cross multiply
    346.44x = 520.74 × 250.68
  4. Step 4: Simplify right side
    346.44x = 130,539.10
  5. Step 5: Solve for x
    x = 130,539.10/346.44
  6. Step 6: Final answer
    x = 376.80

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