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Finding the Fourth Proportional to 240,384.78, 360,379.53 and 140,297.94

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Solution

The fourth proportional to 240,384.78, 360,379.53 and 140,297.94 is: 210,331.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,384.78 : 360,379.53 = 140,297.94 : x
  2. Step 2: Convert to fraction form
    240,384.78/360,379.53 = 140,297.94/x
  3. Step 3: Cross multiply
    240,384.78x = 360,379.53 × 140,297.94
  4. Step 4: Simplify right side
    240,384.78x = 50,560,505,677.17
  5. Step 5: Solve for x
    x = 50,560,505,677.17/240,384.78
  6. Step 6: Final answer
    x = 210,331.56

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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.