Home / 643,221.30-964,878.42-169,900.50

Finding the Fourth Proportional to 643,221.30, 964,878.42 and 169,900.50

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Solution

The fourth proportional to 643,221.30, 964,878.42 and 169,900.50 is: 254,863.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,221.30 : 964,878.42 = 169,900.50 : x
  2. Step 2: Convert to fraction form
    643,221.30/964,878.42 = 169,900.50/x
  3. Step 3: Cross multiply
    643,221.30x = 964,878.42 × 169,900.50
  4. Step 4: Simplify right side
    643,221.30x = 163,933,325,997.21
  5. Step 5: Solve for x
    x = 163,933,325,997.21/643,221.30
  6. Step 6: Final answer
    x = 254,863.02

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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.