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Finding the Fourth Proportional to 342,072.86, 512,891.95 and 300,037.35

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Solution

The fourth proportional to 342,072.86, 512,891.95 and 300,037.35 is: 449,865.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,072.86 : 512,891.95 = 300,037.35 : x
  2. Step 2: Convert to fraction form
    342,072.86/512,891.95 = 300,037.35/x
  3. Step 3: Cross multiply
    342,072.86x = 512,891.95 × 300,037.35
  4. Step 4: Simplify right side
    342,072.86x = 153,886,741,514.33
  5. Step 5: Solve for x
    x = 153,886,741,514.33/342,072.86
  6. Step 6: Final answer
    x = 449,865.39

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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.