Home / 210,871.80-291,005.19-115,382.52

Finding the Fourth Proportional to 210,871.80, 291,005.19 and 115,382.52

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Solution

The fourth proportional to 210,871.80, 291,005.19 and 115,382.52 is: 159,229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,871.80 : 291,005.19 = 115,382.52 : x
  2. Step 2: Convert to fraction form
    210,871.80/291,005.19 = 115,382.52/x
  3. Step 3: Cross multiply
    210,871.80x = 291,005.19 × 115,382.52
  4. Step 4: Simplify right side
    210,871.80x = 33,576,912,155.28
  5. Step 5: Solve for x
    x = 33,576,912,155.28/210,871.80
  6. Step 6: Final answer
    x = 159,229.03

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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.