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Finding the Fourth Proportional to 452,995.45, 679,493.31 and 133,147.37

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Solution

The fourth proportional to 452,995.45, 679,493.31 and 133,147.37 is: 199,721.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,995.45 : 679,493.31 = 133,147.37 : x
  2. Step 2: Convert to fraction form
    452,995.45/679,493.31 = 133,147.37/x
  3. Step 3: Cross multiply
    452,995.45x = 679,493.31 × 133,147.37
  4. Step 4: Simplify right side
    452,995.45x = 90,472,747,159.09
  5. Step 5: Solve for x
    x = 90,472,747,159.09/452,995.45
  6. Step 6: Final answer
    x = 199,721.10

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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.