Home / 388,831.41-582,401.48-188,730.63

Finding the Fourth Proportional to 388,831.41, 582,401.48 and 188,730.63

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Solution

The fourth proportional to 388,831.41, 582,401.48 and 188,730.63 is: 282,685.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,831.41 : 582,401.48 = 188,730.63 : x
  2. Step 2: Convert to fraction form
    388,831.41/582,401.48 = 188,730.63/x
  3. Step 3: Cross multiply
    388,831.41x = 582,401.48 × 188,730.63
  4. Step 4: Simplify right side
    388,831.41x = 109,916,997,289.68
  5. Step 5: Solve for x
    x = 109,916,997,289.68/388,831.41
  6. Step 6: Final answer
    x = 282,685.49

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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.