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Finding the Fourth Proportional to 143,448, 215,171.04 and 36,831.68

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Solution

The fourth proportional to 143,448, 215,171.04 and 36,831.68 is: 55,247.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,448 : 215,171.04 = 36,831.68 : x
  2. Step 2: Convert to fraction form
    143,448/215,171.04 = 36,831.68/x
  3. Step 3: Cross multiply
    143,448x = 215,171.04 × 36,831.68
  4. Step 4: Simplify right side
    143,448x = 7,925,110,890.55
  5. Step 5: Solve for x
    x = 7,925,110,890.55/143,448
  6. Step 6: Final answer
    x = 55,247.27

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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.