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Finding the Fourth Proportional to 298,708.86, 448,574.67 and 199,506.54

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Solution

The fourth proportional to 298,708.86, 448,574.67 and 199,506.54 is: 299,601.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,708.86 : 448,574.67 = 199,506.54 : x
  2. Step 2: Convert to fraction form
    298,708.86/448,574.67 = 199,506.54/x
  3. Step 3: Cross multiply
    298,708.86x = 448,574.67 × 199,506.54
  4. Step 4: Simplify right side
    298,708.86x = 89,493,580,343.34
  5. Step 5: Solve for x
    x = 89,493,580,343.34/298,708.86
  6. Step 6: Final answer
    x = 299,601.36

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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.