Home / 278,664.22-417,996.24-68,300.38

Finding the Fourth Proportional to 278,664.22, 417,996.24 and 68,300.38

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Solution

The fourth proportional to 278,664.22, 417,996.24 and 68,300.38 is: 102,450.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,664.22 : 417,996.24 = 68,300.38 : x
  2. Step 2: Convert to fraction form
    278,664.22/417,996.24 = 68,300.38/x
  3. Step 3: Cross multiply
    278,664.22x = 417,996.24 × 68,300.38
  4. Step 4: Simplify right side
    278,664.22x = 28,549,302,030.57
  5. Step 5: Solve for x
    x = 28,549,302,030.57/278,664.22
  6. Step 6: Final answer
    x = 102,450.55

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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.