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Finding the Fourth Proportional to 377,086.98, 520,366.64 and 207,319.78

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Solution

The fourth proportional to 377,086.98, 520,366.64 and 207,319.78 is: 286,093.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,086.98 : 520,366.64 = 207,319.78 : x
  2. Step 2: Convert to fraction form
    377,086.98/520,366.64 = 207,319.78/x
  3. Step 3: Cross multiply
    377,086.98x = 520,366.64 × 207,319.78
  4. Step 4: Simplify right side
    377,086.98x = 107,882,297,324.14
  5. Step 5: Solve for x
    x = 107,882,297,324.14/377,086.98
  6. Step 6: Final answer
    x = 286,093.93

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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.