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Finding the Fourth Proportional to 453,120.88, 679,637.34 and 137,580.52

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Solution

The fourth proportional to 453,120.88, 679,637.34 and 137,580.52 is: 206,357.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,120.88 : 679,637.34 = 137,580.52 : x
  2. Step 2: Convert to fraction form
    453,120.88/679,637.34 = 137,580.52/x
  3. Step 3: Cross multiply
    453,120.88x = 679,637.34 × 137,580.52
  4. Step 4: Simplify right side
    453,120.88x = 93,504,858,648.62
  5. Step 5: Solve for x
    x = 93,504,858,648.62/453,120.88
  6. Step 6: Final answer
    x = 206,357.43

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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.