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Finding the Fourth Proportional to 247,652.78, 341,762.31 and 145,682.42

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Solution

The fourth proportional to 247,652.78, 341,762.31 and 145,682.42 is: 201,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,652.78 : 341,762.31 = 145,682.42 : x
  2. Step 2: Convert to fraction form
    247,652.78/341,762.31 = 145,682.42/x
  3. Step 3: Cross multiply
    247,652.78x = 341,762.31 × 145,682.42
  4. Step 4: Simplify right side
    247,652.78x = 49,788,758,676.78
  5. Step 5: Solve for x
    x = 49,788,758,676.78/247,652.78
  6. Step 6: Final answer
    x = 201,042.60

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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.