Home / 210,743.79-290,828.73-115,248.44

Finding the Fourth Proportional to 210,743.79, 290,828.73 and 115,248.44

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Solution

The fourth proportional to 210,743.79, 290,828.73 and 115,248.44 is: 159,044.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,743.79 : 290,828.73 = 115,248.44 : x
  2. Step 2: Convert to fraction form
    210,743.79/290,828.73 = 115,248.44/x
  3. Step 3: Cross multiply
    210,743.79x = 290,828.73 × 115,248.44
  4. Step 4: Simplify right side
    210,743.79x = 33,517,557,439.68
  5. Step 5: Solve for x
    x = 33,517,557,439.68/210,743.79
  6. Step 6: Final answer
    x = 159,044.10

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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.