Home / 642,901.25-964,257.11-169,619.87

Finding the Fourth Proportional to 642,901.25, 964,257.11 and 169,619.87

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Solution

The fourth proportional to 642,901.25, 964,257.11 and 169,619.87 is: 254,404.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,901.25 : 964,257.11 = 169,619.87 : x
  2. Step 2: Convert to fraction form
    642,901.25/964,257.11 = 169,619.87/x
  3. Step 3: Cross multiply
    642,901.25x = 964,257.11 × 169,619.87
  4. Step 4: Simplify right side
    642,901.25x = 163,557,167,843.39
  5. Step 5: Solve for x
    x = 163,557,167,843.39/642,901.25
  6. Step 6: Final answer
    x = 254,404.81

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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.