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Finding the Fourth Proportional to 273,811.50, 377,859.87 and 154,579.50

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Solution

The fourth proportional to 273,811.50, 377,859.87 and 154,579.50 is: 213,319.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,811.50 : 377,859.87 = 154,579.50 : x
  2. Step 2: Convert to fraction form
    273,811.50/377,859.87 = 154,579.50/x
  3. Step 3: Cross multiply
    273,811.50x = 377,859.87 × 154,579.50
  4. Step 4: Simplify right side
    273,811.50x = 58,409,389,774.67
  5. Step 5: Solve for x
    x = 58,409,389,774.67/273,811.50
  6. Step 6: Final answer
    x = 213,319.71

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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.