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Finding the Fourth Proportional to 273,857.20, 410,785.80 and 155,759.20

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Solution

The fourth proportional to 273,857.20, 410,785.80 and 155,759.20 is: 233,638.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,857.20 : 410,785.80 = 155,759.20 : x
  2. Step 2: Convert to fraction form
    273,857.20/410,785.80 = 155,759.20/x
  3. Step 3: Cross multiply
    273,857.20x = 410,785.80 × 155,759.20
  4. Step 4: Simplify right side
    273,857.20x = 63,983,667,579.36
  5. Step 5: Solve for x
    x = 63,983,667,579.36/273,857.20
  6. Step 6: Final answer
    x = 233,638.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.