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Finding the Fourth Proportional to 397,958.02, 549,169.11 and 225,889.72

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Solution

The fourth proportional to 397,958.02, 549,169.11 and 225,889.72 is: 311,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,958.02 : 549,169.11 = 225,889.72 : x
  2. Step 2: Convert to fraction form
    397,958.02/549,169.11 = 225,889.72/x
  3. Step 3: Cross multiply
    397,958.02x = 549,169.11 × 225,889.72
  4. Step 4: Simplify right side
    397,958.02x = 124,051,656,490.55
  5. Step 5: Solve for x
    x = 124,051,656,490.55/397,958.02
  6. Step 6: Final answer
    x = 311,720.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.