Home / 219,815.60-329,723.40-79,523.60

Finding the Fourth Proportional to 219,815.60, 329,723.40 and 79,523.60

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Solution

The fourth proportional to 219,815.60, 329,723.40 and 79,523.60 is: 119,285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,815.60 : 329,723.40 = 79,523.60 : x
  2. Step 2: Convert to fraction form
    219,815.60/329,723.40 = 79,523.60/x
  3. Step 3: Cross multiply
    219,815.60x = 329,723.40 × 79,523.60
  4. Step 4: Simplify right side
    219,815.60x = 26,220,791,772.24
  5. Step 5: Solve for x
    x = 26,220,791,772.24/219,815.60
  6. Step 6: Final answer
    x = 119,285.40

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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.