Home / 298,981.22-448,478.31-111,890.66

Finding the Fourth Proportional to 298,981.22, 448,478.31 and 111,890.66

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Solution

The fourth proportional to 298,981.22, 448,478.31 and 111,890.66 is: 167,838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,981.22 : 448,478.31 = 111,890.66 : x
  2. Step 2: Convert to fraction form
    298,981.22/448,478.31 = 111,890.66/x
  3. Step 3: Cross multiply
    298,981.22x = 448,478.31 × 111,890.66
  4. Step 4: Simplify right side
    298,981.22x = 50,180,534,101.58
  5. Step 5: Solve for x
    x = 50,180,534,101.58/298,981.22
  6. Step 6: Final answer
    x = 167,838.42

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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.