Home / 204,217.38-306,328.86-77,864.40

Finding the Fourth Proportional to 204,217.38, 306,328.86 and 77,864.40

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Solution

The fourth proportional to 204,217.38, 306,328.86 and 77,864.40 is: 116,797.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,217.38 : 306,328.86 = 77,864.40 : x
  2. Step 2: Convert to fraction form
    204,217.38/306,328.86 = 77,864.40/x
  3. Step 3: Cross multiply
    204,217.38x = 306,328.86 × 77,864.40
  4. Step 4: Simplify right side
    204,217.38x = 23,852,112,886.58
  5. Step 5: Solve for x
    x = 23,852,112,886.58/204,217.38
  6. Step 6: Final answer
    x = 116,797.66

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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.