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Finding the Fourth Proportional to 342,078.55, 512,900.48 and 300,043.04

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Solution

The fourth proportional to 342,078.55, 512,900.48 and 300,043.04 is: 449,873.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,078.55 : 512,900.48 = 300,043.04 : x
  2. Step 2: Convert to fraction form
    342,078.55/512,900.48 = 300,043.04/x
  3. Step 3: Cross multiply
    342,078.55x = 512,900.48 × 300,043.04
  4. Step 4: Simplify right side
    342,078.55x = 153,892,219,236.66
  5. Step 5: Solve for x
    x = 153,892,219,236.66/342,078.55
  6. Step 6: Final answer
    x = 449,873.92

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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.