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Finding the Fourth Proportional to 327,093.20, 490,655.64 and 90,430.64

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Solution

The fourth proportional to 327,093.20, 490,655.64 and 90,430.64 is: 135,650.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,093.20 : 490,655.64 = 90,430.64 : x
  2. Step 2: Convert to fraction form
    327,093.20/490,655.64 = 90,430.64/x
  3. Step 3: Cross multiply
    327,093.20x = 490,655.64 × 90,430.64
  4. Step 4: Simplify right side
    327,093.20x = 44,370,303,544.81
  5. Step 5: Solve for x
    x = 44,370,303,544.81/327,093.20
  6. Step 6: Final answer
    x = 135,650.34

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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.