Home / 381,831.20-526,912.48-212,076.28

Finding the Fourth Proportional to 381,831.20, 526,912.48 and 212,076.28

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Solution

The fourth proportional to 381,831.20, 526,912.48 and 212,076.28 is: 292,657.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,831.20 : 526,912.48 = 212,076.28 : x
  2. Step 2: Convert to fraction form
    381,831.20/526,912.48 = 212,076.28/x
  3. Step 3: Cross multiply
    381,831.20x = 526,912.48 × 212,076.28
  4. Step 4: Simplify right side
    381,831.20x = 111,745,638,643.97
  5. Step 5: Solve for x
    x = 111,745,638,643.97/381,831.20
  6. Step 6: Final answer
    x = 292,657.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.