Home / 388,566.76-582,932.70-220,165.80

Finding the Fourth Proportional to 388,566.76, 582,932.70 and 220,165.80

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Solution

The fourth proportional to 388,566.76, 582,932.70 and 220,165.80 is: 330,295.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,566.76 : 582,932.70 = 220,165.80 : x
  2. Step 2: Convert to fraction form
    388,566.76/582,932.70 = 220,165.80/x
  3. Step 3: Cross multiply
    388,566.76x = 582,932.70 × 220,165.80
  4. Step 4: Simplify right side
    388,566.76x = 128,341,844,241.66
  5. Step 5: Solve for x
    x = 128,341,844,241.66/388,566.76
  6. Step 6: Final answer
    x = 330,295.48

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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.