Home / 218,047.77-327,198.02-91,678.05

Finding the Fourth Proportional to 218,047.77, 327,198.02 and 91,678.05

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Solution

The fourth proportional to 218,047.77, 327,198.02 and 91,678.05 is: 137,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,047.77 : 327,198.02 = 91,678.05 : x
  2. Step 2: Convert to fraction form
    218,047.77/327,198.02 = 91,678.05/x
  3. Step 3: Cross multiply
    218,047.77x = 327,198.02 × 91,678.05
  4. Step 4: Simplify right side
    218,047.77x = 29,996,875,979.07
  5. Step 5: Solve for x
    x = 29,996,875,979.07/218,047.77
  6. Step 6: Final answer
    x = 137,570.20

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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.