Home / 380,910.12-571,485.90-229,273.26

Finding the Fourth Proportional to 380,910.12, 571,485.90 and 229,273.26

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Solution

The fourth proportional to 380,910.12, 571,485.90 and 229,273.26 is: 343,982.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,910.12 : 571,485.90 = 229,273.26 : x
  2. Step 2: Convert to fraction form
    380,910.12/571,485.90 = 229,273.26/x
  3. Step 3: Cross multiply
    380,910.12x = 571,485.90 × 229,273.26
  4. Step 4: Simplify right side
    380,910.12x = 131,026,435,337.03
  5. Step 5: Solve for x
    x = 131,026,435,337.03/380,910.12
  6. Step 6: Final answer
    x = 343,982.55

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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.