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Finding the Fourth Proportional to 296,801.55, 445,198.28 and 72,161.42

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Solution

The fourth proportional to 296,801.55, 445,198.28 and 72,161.42 is: 108,241.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,801.55 : 445,198.28 = 72,161.42 : x
  2. Step 2: Convert to fraction form
    296,801.55/445,198.28 = 72,161.42/x
  3. Step 3: Cross multiply
    296,801.55x = 445,198.28 × 72,161.42
  4. Step 4: Simplify right side
    296,801.55x = 32,126,137,479.56
  5. Step 5: Solve for x
    x = 32,126,137,479.56/296,801.55
  6. Step 6: Final answer
    x = 108,241.14

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1.5x scale

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.