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Finding the Fourth Proportional to 347,676.26, 479,776.65 and 213,514.34

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Solution

The fourth proportional to 347,676.26, 479,776.65 and 213,514.34 is: 294,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,676.26 : 479,776.65 = 213,514.34 : x
  2. Step 2: Convert to fraction form
    347,676.26/479,776.65 = 213,514.34/x
  3. Step 3: Cross multiply
    347,676.26x = 479,776.65 × 213,514.34
  4. Step 4: Simplify right side
    347,676.26x = 102,439,194,772.16
  5. Step 5: Solve for x
    x = 102,439,194,772.16/347,676.26
  6. Step 6: Final answer
    x = 294,639.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.