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Finding the Fourth Proportional to 377,996.73, 521,610.69 and 208,230.84

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Solution

The fourth proportional to 377,996.73, 521,610.69 and 208,230.84 is: 287,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,996.73 : 521,610.69 = 208,230.84 : x
  2. Step 2: Convert to fraction form
    377,996.73/521,610.69 = 208,230.84/x
  3. Step 3: Cross multiply
    377,996.73x = 521,610.69 × 208,230.84
  4. Step 4: Simplify right side
    377,996.73x = 108,615,432,131.68
  5. Step 5: Solve for x
    x = 108,615,432,131.68/377,996.73
  6. Step 6: Final answer
    x = 287,344.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.