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Finding the Fourth Proportional to 274,119.27, 411,131.75 and 74,455.74

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Solution

The fourth proportional to 274,119.27, 411,131.75 and 74,455.74 is: 111,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,119.27 : 411,131.75 = 74,455.74 : x
  2. Step 2: Convert to fraction form
    274,119.27/411,131.75 = 74,455.74/x
  3. Step 3: Cross multiply
    274,119.27x = 411,131.75 × 74,455.74
  4. Step 4: Simplify right side
    274,119.27x = 30,611,118,311.47
  5. Step 5: Solve for x
    x = 30,611,118,311.47/274,119.27
  6. Step 6: Final answer
    x = 111,670.80

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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.