Home / 325,708.20-488,489.40-214,171.20

Finding the Fourth Proportional to 325,708.20, 488,489.40 and 214,171.20

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Solution

The fourth proportional to 325,708.20, 488,489.40 and 214,171.20 is: 321,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,708.20 : 488,489.40 = 214,171.20 : x
  2. Step 2: Convert to fraction form
    325,708.20/488,489.40 = 214,171.20/x
  3. Step 3: Cross multiply
    325,708.20x = 488,489.40 × 214,171.20
  4. Step 4: Simplify right side
    325,708.20x = 104,620,360,985.28
  5. Step 5: Solve for x
    x = 104,620,360,985.28/325,708.20
  6. Step 6: Final answer
    x = 321,208.86

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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.