Home / 219,945.60-329,875.20-72,201.60

Finding the Fourth Proportional to 219,945.60, 329,875.20 and 72,201.60

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Solution

The fourth proportional to 219,945.60, 329,875.20 and 72,201.60 is: 108,288.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,945.60 : 329,875.20 = 72,201.60 : x
  2. Step 2: Convert to fraction form
    219,945.60/329,875.20 = 72,201.60/x
  3. Step 3: Cross multiply
    219,945.60x = 329,875.20 × 72,201.60
  4. Step 4: Simplify right side
    219,945.60x = 23,817,517,240.32
  5. Step 5: Solve for x
    x = 23,817,517,240.32/219,945.60
  6. Step 6: Final answer
    x = 108,288.22

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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.