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Finding the Fourth Proportional to 397,953, 549,540.03 and 252,805.65

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Solution

The fourth proportional to 397,953, 549,540.03 and 252,805.65 is: 349,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,953 : 549,540.03 = 252,805.65 : x
  2. Step 2: Convert to fraction form
    397,953/549,540.03 = 252,805.65/x
  3. Step 3: Cross multiply
    397,953x = 549,540.03 × 252,805.65
  4. Step 4: Simplify right side
    397,953x = 138,926,824,485.17
  5. Step 5: Solve for x
    x = 138,926,824,485.17/397,953
  6. Step 6: Final answer
    x = 349,103.60

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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.