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Finding the Fourth Proportional to 340,327.72, 510,495.18 and 140,510.44

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Solution

The fourth proportional to 340,327.72, 510,495.18 and 140,510.44 is: 210,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,327.72 : 510,495.18 = 140,510.44 : x
  2. Step 2: Convert to fraction form
    340,327.72/510,495.18 = 140,510.44/x
  3. Step 3: Cross multiply
    340,327.72x = 510,495.18 × 140,510.44
  4. Step 4: Simplify right side
    340,327.72x = 71,729,902,359.68
  5. Step 5: Solve for x
    x = 71,729,902,359.68/340,327.72
  6. Step 6: Final answer
    x = 210,767.15

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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.