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Finding the Fourth Proportional to 273,150.90, 409,580.55 and 115,200.90

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Solution

The fourth proportional to 273,150.90, 409,580.55 and 115,200.90 is: 172,739.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,150.90 : 409,580.55 = 115,200.90 : x
  2. Step 2: Convert to fraction form
    273,150.90/409,580.55 = 115,200.90/x
  3. Step 3: Cross multiply
    273,150.90x = 409,580.55 × 115,200.90
  4. Step 4: Simplify right side
    273,150.90x = 47,184,047,982.50
  5. Step 5: Solve for x
    x = 47,184,047,982.50/273,150.90
  6. Step 6: Final answer
    x = 172,739.86

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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.