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Finding the Fourth Proportional to 295,609.42, 443,410.89 and 85,240.54

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Solution

The fourth proportional to 295,609.42, 443,410.89 and 85,240.54 is: 127,859.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,609.42 : 443,410.89 = 85,240.54 : x
  2. Step 2: Convert to fraction form
    295,609.42/443,410.89 = 85,240.54/x
  3. Step 3: Cross multiply
    295,609.42x = 443,410.89 × 85,240.54
  4. Step 4: Simplify right side
    295,609.42x = 37,796,583,705.48
  5. Step 5: Solve for x
    x = 37,796,583,705.48/295,609.42
  6. Step 6: Final answer
    x = 127,859.88

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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.