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Finding the Fourth Proportional to 298,719.42, 448,079.13 and 88,340.97

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Solution

The fourth proportional to 298,719.42, 448,079.13 and 88,340.97 is: 132,511.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,719.42 : 448,079.13 = 88,340.97 : x
  2. Step 2: Convert to fraction form
    298,719.42/448,079.13 = 88,340.97/x
  3. Step 3: Cross multiply
    298,719.42x = 448,079.13 × 88,340.97
  4. Step 4: Simplify right side
    298,719.42x = 39,583,744,980.96
  5. Step 5: Solve for x
    x = 39,583,744,980.96/298,719.42
  6. Step 6: Final answer
    x = 132,511.46

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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.