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Finding the Fourth Proportional to 273,342.20, 409,667.70 and 243,620.60

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Solution

The fourth proportional to 273,342.20, 409,667.70 and 243,620.60 is: 365,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,342.20 : 409,667.70 = 243,620.60 : x
  2. Step 2: Convert to fraction form
    273,342.20/409,667.70 = 243,620.60/x
  3. Step 3: Cross multiply
    273,342.20x = 409,667.70 × 243,620.60
  4. Step 4: Simplify right side
    273,342.20x = 99,803,490,874.62
  5. Step 5: Solve for x
    x = 99,803,490,874.62/273,342.20
  6. Step 6: Final answer
    x = 365,122.88

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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.