Home / 214,917.60-322,376.40-205,816.80

Finding the Fourth Proportional to 214,917.60, 322,376.40 and 205,816.80

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Solution

The fourth proportional to 214,917.60, 322,376.40 and 205,816.80 is: 308,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,917.60 : 322,376.40 = 205,816.80 : x
  2. Step 2: Convert to fraction form
    214,917.60/322,376.40 = 205,816.80/x
  3. Step 3: Cross multiply
    214,917.60x = 322,376.40 × 205,816.80
  4. Step 4: Simplify right side
    214,917.60x = 66,350,479,043.52
  5. Step 5: Solve for x
    x = 66,350,479,043.52/214,917.60
  6. Step 6: Final answer
    x = 308,725.20

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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.