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Finding the Fourth Proportional to 549,933.22, 758,906.81 and 308,215.72

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Solution

The fourth proportional to 549,933.22, 758,906.81 and 308,215.72 is: 425,337.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,933.22 : 758,906.81 = 308,215.72 : x
  2. Step 2: Convert to fraction form
    549,933.22/758,906.81 = 308,215.72/x
  3. Step 3: Cross multiply
    549,933.22x = 758,906.81 × 308,215.72
  4. Step 4: Simplify right side
    549,933.22x = 233,907,008,857.05
  5. Step 5: Solve for x
    x = 233,907,008,857.05/549,933.22
  6. Step 6: Final answer
    x = 425,337.11

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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.