Home / 388,498.62-582,831.30-220,099.62

Finding the Fourth Proportional to 388,498.62, 582,831.30 and 220,099.62

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Solution

The fourth proportional to 388,498.62, 582,831.30 and 220,099.62 is: 330,196.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,498.62 : 582,831.30 = 220,099.62 : x
  2. Step 2: Convert to fraction form
    388,498.62/582,831.30 = 220,099.62/x
  3. Step 3: Cross multiply
    388,498.62x = 582,831.30 × 220,099.62
  4. Step 4: Simplify right side
    388,498.62x = 128,280,947,654.11
  5. Step 5: Solve for x
    x = 128,280,947,654.11/388,498.62
  6. Step 6: Final answer
    x = 330,196.66

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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.