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Finding the Fourth Proportional to 273,704.69, 377,370.86 and 209,253.80

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Solution

The fourth proportional to 273,704.69, 377,370.86 and 209,253.80 is: 288,509.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,704.69 : 377,370.86 = 209,253.80 : x
  2. Step 2: Convert to fraction form
    273,704.69/377,370.86 = 209,253.80/x
  3. Step 3: Cross multiply
    273,704.69x = 377,370.86 × 209,253.80
  4. Step 4: Simplify right side
    273,704.69x = 78,966,286,361.43
  5. Step 5: Solve for x
    x = 78,966,286,361.43/273,704.69
  6. Step 6: Final answer
    x = 288,509.07

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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.