Home / 275,938.08-380,793.96-155,084.28

Finding the Fourth Proportional to 275,938.08, 380,793.96 and 155,084.28

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Solution

The fourth proportional to 275,938.08, 380,793.96 and 155,084.28 is: 214,015.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,938.08 : 380,793.96 = 155,084.28 : x
  2. Step 2: Convert to fraction form
    275,938.08/380,793.96 = 155,084.28/x
  3. Step 3: Cross multiply
    275,938.08x = 380,793.96 × 155,084.28
  4. Step 4: Simplify right side
    275,938.08x = 59,055,157,114.95
  5. Step 5: Solve for x
    x = 59,055,157,114.95/275,938.08
  6. Step 6: Final answer
    x = 214,015.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.