Home / 218,961.56-328,442.65-52,749.56

Finding the Fourth Proportional to 218,961.56, 328,442.65 and 52,749.56

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Solution

The fourth proportional to 218,961.56, 328,442.65 and 52,749.56 is: 79,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,961.56 : 328,442.65 = 52,749.56 : x
  2. Step 2: Convert to fraction form
    218,961.56/328,442.65 = 52,749.56/x
  3. Step 3: Cross multiply
    218,961.56x = 328,442.65 × 52,749.56
  4. Step 4: Simplify right side
    218,961.56x = 17,325,205,961.97
  5. Step 5: Solve for x
    x = 17,325,205,961.97/218,961.56
  6. Step 6: Final answer
    x = 79,124.42

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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.