Home / 219,268.20-328,805.10-100,878.60

Finding the Fourth Proportional to 219,268.20, 328,805.10 and 100,878.60

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Solution

The fourth proportional to 219,268.20, 328,805.10 and 100,878.60 is: 151,273.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,268.20 : 328,805.10 = 100,878.60 : x
  2. Step 2: Convert to fraction form
    219,268.20/328,805.10 = 100,878.60/x
  3. Step 3: Cross multiply
    219,268.20x = 328,805.10 × 100,878.60
  4. Step 4: Simplify right side
    219,268.20x = 33,169,398,160.86
  5. Step 5: Solve for x
    x = 33,169,398,160.86/219,268.20
  6. Step 6: Final answer
    x = 151,273.18

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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.