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Finding the Fourth Proportional to 236,143.86, 354,040.83 and 142,627.74

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Solution

The fourth proportional to 236,143.86, 354,040.83 and 142,627.74 is: 213,835.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,143.86 : 354,040.83 = 142,627.74 : x
  2. Step 2: Convert to fraction form
    236,143.86/354,040.83 = 142,627.74/x
  3. Step 3: Cross multiply
    236,143.86x = 354,040.83 × 142,627.74
  4. Step 4: Simplify right side
    236,143.86x = 50,496,043,450.62
  5. Step 5: Solve for x
    x = 50,496,043,450.62/236,143.86
  6. Step 6: Final answer
    x = 213,835.94

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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.