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Finding the Fourth Proportional to 218,238.86, 301,166.66 and 122,745.52

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Solution

The fourth proportional to 218,238.86, 301,166.66 and 122,745.52 is: 169,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,238.86 : 301,166.66 = 122,745.52 : x
  2. Step 2: Convert to fraction form
    218,238.86/301,166.66 = 122,745.52/x
  3. Step 3: Cross multiply
    218,238.86x = 301,166.66 × 122,745.52
  4. Step 4: Simplify right side
    218,238.86x = 36,966,858,288.36
  5. Step 5: Solve for x
    x = 36,966,858,288.36/218,238.86
  6. Step 6: Final answer
    x = 169,387.15

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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.