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Finding the Fourth Proportional to 377,082.54, 520,375.86 and 207,327.60

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Solution

The fourth proportional to 377,082.54, 520,375.86 and 207,327.60 is: 286,113.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,082.54 : 520,375.86 = 207,327.60 : x
  2. Step 2: Convert to fraction form
    377,082.54/520,375.86 = 207,327.60/x
  3. Step 3: Cross multiply
    377,082.54x = 520,375.86 × 207,327.60
  4. Step 4: Simplify right side
    377,082.54x = 107,888,278,151.74
  5. Step 5: Solve for x
    x = 107,888,278,151.74/377,082.54
  6. Step 6: Final answer
    x = 286,113.16

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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.