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Finding the Fourth Proportional to 246,302.79, 339,893.04 and 138,870.73

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Solution

The fourth proportional to 246,302.79, 339,893.04 and 138,870.73 is: 191,638.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,302.79 : 339,893.04 = 138,870.73 : x
  2. Step 2: Convert to fraction form
    246,302.79/339,893.04 = 138,870.73/x
  3. Step 3: Cross multiply
    246,302.79x = 339,893.04 × 138,870.73
  4. Step 4: Simplify right side
    246,302.79x = 47,201,194,586.72
  5. Step 5: Solve for x
    x = 47,201,194,586.72/246,302.79
  6. Step 6: Final answer
    x = 191,638.90

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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.