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Finding the Fourth Proportional to 611,268.41, 916,859.33 and 161,979.33

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Solution

The fourth proportional to 611,268.41, 916,859.33 and 161,979.33 is: 242,957.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,268.41 : 916,859.33 = 161,979.33 : x
  2. Step 2: Convert to fraction form
    611,268.41/916,859.33 = 161,979.33/x
  3. Step 3: Cross multiply
    611,268.41x = 916,859.33 × 161,979.33
  4. Step 4: Simplify right side
    611,268.41x = 148,512,259,977.65
  5. Step 5: Solve for x
    x = 148,512,259,977.65/611,268.41
  6. Step 6: Final answer
    x = 242,957.52

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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.