Home / 259,020.56-388,258.68-118,663.76

Finding the Fourth Proportional to 259,020.56, 388,258.68 and 118,663.76

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Solution

The fourth proportional to 259,020.56, 388,258.68 and 118,663.76 is: 177,870.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,020.56 : 388,258.68 = 118,663.76 : x
  2. Step 2: Convert to fraction form
    259,020.56/388,258.68 = 118,663.76/x
  3. Step 3: Cross multiply
    259,020.56x = 388,258.68 × 118,663.76
  4. Step 4: Simplify right side
    259,020.56x = 46,072,234,821.44
  5. Step 5: Solve for x
    x = 46,072,234,821.44/259,020.56
  6. Step 6: Final answer
    x = 177,870.96

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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.