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Finding the Fourth Proportional to 450,863.79, 676,399.37 and 135,326.67

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Solution

The fourth proportional to 450,863.79, 676,399.37 and 135,326.67 is: 203,021.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,863.79 : 676,399.37 = 135,326.67 : x
  2. Step 2: Convert to fraction form
    450,863.79/676,399.37 = 135,326.67/x
  3. Step 3: Cross multiply
    450,863.79x = 676,399.37 × 135,326.67
  4. Step 4: Simplify right side
    450,863.79x = 91,534,873,655.56
  5. Step 5: Solve for x
    x = 91,534,873,655.56/450,863.79
  6. Step 6: Final answer
    x = 203,021.12

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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.