Home / 219,111.20-328,569.60-100,818.80

Finding the Fourth Proportional to 219,111.20, 328,569.60 and 100,818.80

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Solution

The fourth proportional to 219,111.20, 328,569.60 and 100,818.80 is: 151,183.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,111.20 : 328,569.60 = 100,818.80 : x
  2. Step 2: Convert to fraction form
    219,111.20/328,569.60 = 100,818.80/x
  3. Step 3: Cross multiply
    219,111.20x = 328,569.60 × 100,818.80
  4. Step 4: Simplify right side
    219,111.20x = 33,125,992,788.48
  5. Step 5: Solve for x
    x = 33,125,992,788.48/219,111.20
  6. Step 6: Final answer
    x = 151,183.48

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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.