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Finding the Fourth Proportional to 298,682.80, 448,211.76 and 121,190.56

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Solution

The fourth proportional to 298,682.80, 448,211.76 and 121,190.56 is: 181,861.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,682.80 : 448,211.76 = 121,190.56 : x
  2. Step 2: Convert to fraction form
    298,682.80/448,211.76 = 121,190.56/x
  3. Step 3: Cross multiply
    298,682.80x = 448,211.76 × 121,190.56
  4. Step 4: Simplify right side
    298,682.80x = 54,319,034,192.99
  5. Step 5: Solve for x
    x = 54,319,034,192.99/298,682.80
  6. Step 6: Final answer
    x = 181,861.94

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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.