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Finding the Fourth Proportional to 273,448.60, 409,516.80 and 133,043.20

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Solution

The fourth proportional to 273,448.60, 409,516.80 and 133,043.20 is: 199,245.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,448.60 : 409,516.80 = 133,043.20 : x
  2. Step 2: Convert to fraction form
    273,448.60/409,516.80 = 133,043.20/x
  3. Step 3: Cross multiply
    273,448.60x = 409,516.80 × 133,043.20
  4. Step 4: Simplify right side
    273,448.60x = 54,483,425,525.76
  5. Step 5: Solve for x
    x = 54,483,425,525.76/273,448.60
  6. Step 6: Final answer
    x = 199,245.58

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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.