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Finding the Fourth Proportional to 376,926.63, 520,144.48 and 215,796.67

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Solution

The fourth proportional to 376,926.63, 520,144.48 and 215,796.67 is: 297,791.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,926.63 : 520,144.48 = 215,796.67 : x
  2. Step 2: Convert to fraction form
    376,926.63/520,144.48 = 215,796.67/x
  3. Step 3: Cross multiply
    376,926.63x = 520,144.48 × 215,796.67
  4. Step 4: Simplify right side
    376,926.63x = 112,245,446,163.39
  5. Step 5: Solve for x
    x = 112,245,446,163.39/376,926.63
  6. Step 6: Final answer
    x = 297,791.23

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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.