Home / 320,969.91-442,933.05-177,726.87

Finding the Fourth Proportional to 320,969.91, 442,933.05 and 177,726.87

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Solution

The fourth proportional to 320,969.91, 442,933.05 and 177,726.87 is: 245,260.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,969.91 : 442,933.05 = 177,726.87 : x
  2. Step 2: Convert to fraction form
    320,969.91/442,933.05 = 177,726.87/x
  3. Step 3: Cross multiply
    320,969.91x = 442,933.05 × 177,726.87
  4. Step 4: Simplify right side
    320,969.91x = 78,721,104,596.05
  5. Step 5: Solve for x
    x = 78,721,104,596.05/320,969.91
  6. Step 6: Final answer
    x = 245,260.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.