Home / 218,970.90-328,354.26-113,761.62

Finding the Fourth Proportional to 218,970.90, 328,354.26 and 113,761.62

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Solution

The fourth proportional to 218,970.90, 328,354.26 and 113,761.62 is: 170,589.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,970.90 : 328,354.26 = 113,761.62 : x
  2. Step 2: Convert to fraction form
    218,970.90/328,354.26 = 113,761.62/x
  3. Step 3: Cross multiply
    218,970.90x = 328,354.26 × 113,761.62
  4. Step 4: Simplify right side
    218,970.90x = 37,354,112,551.50
  5. Step 5: Solve for x
    x = 37,354,112,551.50/218,970.90
  6. Step 6: Final answer
    x = 170,589.39

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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.