Home / 258,669.06-388,047.33-118,438.62

Finding the Fourth Proportional to 258,669.06, 388,047.33 and 118,438.62

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Solution

The fourth proportional to 258,669.06, 388,047.33 and 118,438.62 is: 177,677.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,669.06 : 388,047.33 = 118,438.62 : x
  2. Step 2: Convert to fraction form
    258,669.06/388,047.33 = 118,438.62/x
  3. Step 3: Cross multiply
    258,669.06x = 388,047.33 × 118,438.62
  4. Step 4: Simplify right side
    258,669.06x = 45,959,790,259.88
  5. Step 5: Solve for x
    x = 45,959,790,259.88/258,669.06
  6. Step 6: Final answer
    x = 177,677.96

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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.