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Finding the Fourth Proportional to 481,649.59, 664,698.32 and 266,789.63

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Solution

The fourth proportional to 481,649.59, 664,698.32 and 266,789.63 is: 368,181.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,649.59 : 664,698.32 = 266,789.63 : x
  2. Step 2: Convert to fraction form
    481,649.59/664,698.32 = 266,789.63/x
  3. Step 3: Cross multiply
    481,649.59x = 664,698.32 × 266,789.63
  4. Step 4: Simplify right side
    481,649.59x = 177,334,620,182.68
  5. Step 5: Solve for x
    x = 177,334,620,182.68/481,649.59
  6. Step 6: Final answer
    x = 368,181.81

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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.