Home / 219,455.40-329,183.10-79,218.60

Finding the Fourth Proportional to 219,455.40, 329,183.10 and 79,218.60

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Solution

The fourth proportional to 219,455.40, 329,183.10 and 79,218.60 is: 118,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,455.40 : 329,183.10 = 79,218.60 : x
  2. Step 2: Convert to fraction form
    219,455.40/329,183.10 = 79,218.60/x
  3. Step 3: Cross multiply
    219,455.40x = 329,183.10 × 79,218.60
  4. Step 4: Simplify right side
    219,455.40x = 26,077,424,325.66
  5. Step 5: Solve for x
    x = 26,077,424,325.66/219,455.40
  6. Step 6: Final answer
    x = 118,827.90

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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.