Home / 259,019.56-388,257.18-118,662.76

Finding the Fourth Proportional to 259,019.56, 388,257.18 and 118,662.76

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Solution

The fourth proportional to 259,019.56, 388,257.18 and 118,662.76 is: 177,869.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,019.56 : 388,257.18 = 118,662.76 : x
  2. Step 2: Convert to fraction form
    259,019.56/388,257.18 = 118,662.76/x
  3. Step 3: Cross multiply
    259,019.56x = 388,257.18 × 118,662.76
  4. Step 4: Simplify right side
    259,019.56x = 46,071,668,568.62
  5. Step 5: Solve for x
    x = 46,071,668,568.62/259,019.56
  6. Step 6: Final answer
    x = 177,869.46

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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.