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Finding the Fourth Proportional to 339,442.46, 508,968.57 and 139,900.58

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Solution

The fourth proportional to 339,442.46, 508,968.57 and 139,900.58 is: 209,770.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,442.46 : 508,968.57 = 139,900.58 : x
  2. Step 2: Convert to fraction form
    339,442.46/508,968.57 = 139,900.58/x
  3. Step 3: Cross multiply
    339,442.46x = 508,968.57 × 139,900.58
  4. Step 4: Simplify right side
    339,442.46x = 71,204,998,144.77
  5. Step 5: Solve for x
    x = 71,204,998,144.77/339,442.46
  6. Step 6: Final answer
    x = 209,770.45

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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.