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Finding the Fourth Proportional to 219,166.60, 328,749.90 and 125,854.60

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Solution

The fourth proportional to 219,166.60, 328,749.90 and 125,854.60 is: 188,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,166.60 : 328,749.90 = 125,854.60 : x
  2. Step 2: Convert to fraction form
    219,166.60/328,749.90 = 125,854.60/x
  3. Step 3: Cross multiply
    219,166.60x = 328,749.90 × 125,854.60
  4. Step 4: Simplify right side
    219,166.60x = 41,374,687,164.54
  5. Step 5: Solve for x
    x = 41,374,687,164.54/219,166.60
  6. Step 6: Final answer
    x = 188,781.90

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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.