Home / 214,869.60-322,450.20-139,806.90

Finding the Fourth Proportional to 214,869.60, 322,450.20 and 139,806.90

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Solution

The fourth proportional to 214,869.60, 322,450.20 and 139,806.90 is: 209,805.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,869.60 : 322,450.20 = 139,806.90 : x
  2. Step 2: Convert to fraction form
    214,869.60/322,450.20 = 139,806.90/x
  3. Step 3: Cross multiply
    214,869.60x = 322,450.20 × 139,806.90
  4. Step 4: Simplify right side
    214,869.60x = 45,080,762,866.38
  5. Step 5: Solve for x
    x = 45,080,762,866.38/214,869.60
  6. Step 6: Final answer
    x = 209,805.22

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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.