Home / 220,831.15-331,246.84-71,071.43

Finding the Fourth Proportional to 220,831.15, 331,246.84 and 71,071.43

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Solution

The fourth proportional to 220,831.15, 331,246.84 and 71,071.43 is: 106,607.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,831.15 : 331,246.84 = 71,071.43 : x
  2. Step 2: Convert to fraction form
    220,831.15/331,246.84 = 71,071.43/x
  3. Step 3: Cross multiply
    220,831.15x = 331,246.84 × 71,071.43
  4. Step 4: Simplify right side
    220,831.15x = 23,542,184,651.27
  5. Step 5: Solve for x
    x = 23,542,184,651.27/220,831.15
  6. Step 6: Final answer
    x = 106,607.17

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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.