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Finding the Fourth Proportional to 298,809.66, 448,354.38 and 149,061.54

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Solution

The fourth proportional to 298,809.66, 448,354.38 and 149,061.54 is: 223,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,809.66 : 448,354.38 = 149,061.54 : x
  2. Step 2: Convert to fraction form
    298,809.66/448,354.38 = 149,061.54/x
  3. Step 3: Cross multiply
    298,809.66x = 448,354.38 × 149,061.54
  4. Step 4: Simplify right side
    298,809.66x = 66,832,394,348.55
  5. Step 5: Solve for x
    x = 66,832,394,348.55/298,809.66
  6. Step 6: Final answer
    x = 223,662.09

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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.