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Finding the Fourth Proportional to 377,351.72, 520,713.84 and 222,278.39

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Solution

The fourth proportional to 377,351.72, 520,713.84 and 222,278.39 is: 306,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,351.72 : 520,713.84 = 222,278.39 : x
  2. Step 2: Convert to fraction form
    377,351.72/520,713.84 = 222,278.39/x
  3. Step 3: Cross multiply
    377,351.72x = 520,713.84 × 222,278.39
  4. Step 4: Simplify right side
    377,351.72x = 115,743,431,402.35
  5. Step 5: Solve for x
    x = 115,743,431,402.35/377,351.72
  6. Step 6: Final answer
    x = 306,725.60

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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.