Home / 214,890.40-322,335.60-165,221.20

Finding the Fourth Proportional to 214,890.40, 322,335.60 and 165,221.20

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Solution

The fourth proportional to 214,890.40, 322,335.60 and 165,221.20 is: 247,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,890.40 : 322,335.60 = 165,221.20 : x
  2. Step 2: Convert to fraction form
    214,890.40/322,335.60 = 165,221.20/x
  3. Step 3: Cross multiply
    214,890.40x = 322,335.60 × 165,221.20
  4. Step 4: Simplify right side
    214,890.40x = 53,256,674,634.72
  5. Step 5: Solve for x
    x = 53,256,674,634.72/214,890.40
  6. Step 6: Final answer
    x = 247,831.80

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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.