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Finding the Fourth Proportional to 451,175.72, 622,604.21 and 269,780.67

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Solution

The fourth proportional to 451,175.72, 622,604.21 and 269,780.67 is: 372,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,175.72 : 622,604.21 = 269,780.67 : x
  2. Step 2: Convert to fraction form
    451,175.72/622,604.21 = 269,780.67/x
  3. Step 3: Cross multiply
    451,175.72x = 622,604.21 × 269,780.67
  4. Step 4: Simplify right side
    451,175.72x = 167,966,579,569.72
  5. Step 5: Solve for x
    x = 167,966,579,569.72/451,175.72
  6. Step 6: Final answer
    x = 372,286.39

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1.5x scale

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.