Home / 643,222.11-964,879.49-169,901.31

Finding the Fourth Proportional to 643,222.11, 964,879.49 and 169,901.31

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Solution

The fourth proportional to 643,222.11, 964,879.49 and 169,901.31 is: 254,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,222.11 : 964,879.49 = 169,901.31 : x
  2. Step 2: Convert to fraction form
    643,222.11/964,879.49 = 169,901.31/x
  3. Step 3: Cross multiply
    643,222.11x = 964,879.49 × 169,901.31
  4. Step 4: Simplify right side
    643,222.11x = 163,934,288,493.63
  5. Step 5: Solve for x
    x = 163,934,288,493.63/643,222.11
  6. Step 6: Final answer
    x = 254,864.20

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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.