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Finding the Fourth Proportional to 367,021.96, 550,474.05 and 100,720.30

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Solution

The fourth proportional to 367,021.96, 550,474.05 and 100,720.30 is: 151,064.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,021.96 : 550,474.05 = 100,720.30 : x
  2. Step 2: Convert to fraction form
    367,021.96/550,474.05 = 100,720.30/x
  3. Step 3: Cross multiply
    367,021.96x = 550,474.05 × 100,720.30
  4. Step 4: Simplify right side
    367,021.96x = 55,443,911,458.22
  5. Step 5: Solve for x
    x = 55,443,911,458.22/367,021.96
  6. Step 6: Final answer
    x = 151,064.29

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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.