Home / 219,440.86-329,127.68-69,661.60

Finding the Fourth Proportional to 219,440.86, 329,127.68 and 69,661.60

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Solution

The fourth proportional to 219,440.86, 329,127.68 and 69,661.60 is: 104,481.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,440.86 : 329,127.68 = 69,661.60 : x
  2. Step 2: Convert to fraction form
    219,440.86/329,127.68 = 69,661.60/x
  3. Step 3: Cross multiply
    219,440.86x = 329,127.68 × 69,661.60
  4. Step 4: Simplify right side
    219,440.86x = 22,927,560,444.78
  5. Step 5: Solve for x
    x = 22,927,560,444.78/219,440.86
  6. Step 6: Final answer
    x = 104,481.73

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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.