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Finding the Fourth Proportional to 273,415.60, 409,816.20 and 140,244.40

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Solution

The fourth proportional to 273,415.60, 409,816.20 and 140,244.40 is: 210,209.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,415.60 : 409,816.20 = 140,244.40 : x
  2. Step 2: Convert to fraction form
    273,415.60/409,816.20 = 140,244.40/x
  3. Step 3: Cross multiply
    273,415.60x = 409,816.20 × 140,244.40
  4. Step 4: Simplify right side
    273,415.60x = 57,474,427,079.28
  5. Step 5: Solve for x
    x = 57,474,427,079.28/273,415.60
  6. Step 6: Final answer
    x = 210,209.03

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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.