Home / 388,961.60-582,664.80-222,555.20

Finding the Fourth Proportional to 388,961.60, 582,664.80 and 222,555.20

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Solution

The fourth proportional to 388,961.60, 582,664.80 and 222,555.20 is: 333,387.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,961.60 : 582,664.80 = 222,555.20 : x
  2. Step 2: Convert to fraction form
    388,961.60/582,664.80 = 222,555.20/x
  3. Step 3: Cross multiply
    388,961.60x = 582,664.80 × 222,555.20
  4. Step 4: Simplify right side
    388,961.60x = 129,675,081,096.96
  5. Step 5: Solve for x
    x = 129,675,081,096.96/388,961.60
  6. Step 6: Final answer
    x = 333,387.87

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1.5x scale

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.