Home / 218,826.81-328,258.58-61,057.17

Finding the Fourth Proportional to 218,826.81, 328,258.58 and 61,057.17

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Solution

The fourth proportional to 218,826.81, 328,258.58 and 61,057.17 is: 91,590.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,826.81 : 328,258.58 = 61,057.17 : x
  2. Step 2: Convert to fraction form
    218,826.81/328,258.58 = 61,057.17/x
  3. Step 3: Cross multiply
    218,826.81x = 328,258.58 × 61,057.17
  4. Step 4: Simplify right side
    218,826.81x = 20,042,539,617.73
  5. Step 5: Solve for x
    x = 20,042,539,617.73/218,826.81
  6. Step 6: Final answer
    x = 91,590.88

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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.