Home / 204,218.38-306,330.36-77,865.40

Finding the Fourth Proportional to 204,218.38, 306,330.36 and 77,865.40

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Solution

The fourth proportional to 204,218.38, 306,330.36 and 77,865.40 is: 116,799.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,218.38 : 306,330.36 = 77,865.40 : x
  2. Step 2: Convert to fraction form
    204,218.38/306,330.36 = 77,865.40/x
  3. Step 3: Cross multiply
    204,218.38x = 306,330.36 × 77,865.40
  4. Step 4: Simplify right side
    204,218.38x = 23,852,536,013.54
  5. Step 5: Solve for x
    x = 23,852,536,013.54/204,218.38
  6. Step 6: Final answer
    x = 116,799.16

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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.