Home / 218,945.60-328,418.40-125,633.60

Finding the Fourth Proportional to 218,945.60, 328,418.40 and 125,633.60

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Solution

The fourth proportional to 218,945.60, 328,418.40 and 125,633.60 is: 188,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,945.60 : 328,418.40 = 125,633.60 : x
  2. Step 2: Convert to fraction form
    218,945.60/328,418.40 = 125,633.60/x
  3. Step 3: Cross multiply
    218,945.60x = 328,418.40 × 125,633.60
  4. Step 4: Simplify right side
    218,945.60x = 41,260,385,898.24
  5. Step 5: Solve for x
    x = 41,260,385,898.24/218,945.60
  6. Step 6: Final answer
    x = 188,450.40

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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.