Home / 205,233.60-307,558.80-142,831.20

Finding the Fourth Proportional to 205,233.60, 307,558.80 and 142,831.20

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Solution

The fourth proportional to 205,233.60, 307,558.80 and 142,831.20 is: 214,043.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,233.60 : 307,558.80 = 142,831.20 : x
  2. Step 2: Convert to fraction form
    205,233.60/307,558.80 = 142,831.20/x
  3. Step 3: Cross multiply
    205,233.60x = 307,558.80 × 142,831.20
  4. Step 4: Simplify right side
    205,233.60x = 43,928,992,474.56
  5. Step 5: Solve for x
    x = 43,928,992,474.56/205,233.60
  6. Step 6: Final answer
    x = 214,043.86

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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.