Home / 343,721.80-515,382.87-229,999.56

Finding the Fourth Proportional to 343,721.80, 515,382.87 and 229,999.56

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Solution

The fourth proportional to 343,721.80, 515,382.87 and 229,999.56 is: 344,865.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,721.80 : 515,382.87 = 229,999.56 : x
  2. Step 2: Convert to fraction form
    343,721.80/515,382.87 = 229,999.56/x
  3. Step 3: Cross multiply
    343,721.80x = 515,382.87 × 229,999.56
  4. Step 4: Simplify right side
    343,721.80x = 118,537,833,331.54
  5. Step 5: Solve for x
    x = 118,537,833,331.54/343,721.80
  6. Step 6: Final answer
    x = 344,865.62

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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.