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Finding the Fourth Proportional to 351,305.60, 526,958.40 and 161,765.60

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Solution

The fourth proportional to 351,305.60, 526,958.40 and 161,765.60 is: 242,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,305.60 : 526,958.40 = 161,765.60 : x
  2. Step 2: Convert to fraction form
    351,305.60/526,958.40 = 161,765.60/x
  3. Step 3: Cross multiply
    351,305.60x = 526,958.40 × 161,765.60
  4. Step 4: Simplify right side
    351,305.60x = 85,243,741,751.04
  5. Step 5: Solve for x
    x = 85,243,741,751.04/351,305.60
  6. Step 6: Final answer
    x = 242,648.40

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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.