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Finding the Fourth Proportional to 252,954.56, 349,073.88 and 139,779.20

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Solution

The fourth proportional to 252,954.56, 349,073.88 and 139,779.20 is: 192,893.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,954.56 : 349,073.88 = 139,779.20 : x
  2. Step 2: Convert to fraction form
    252,954.56/349,073.88 = 139,779.20/x
  3. Step 3: Cross multiply
    252,954.56x = 349,073.88 × 139,779.20
  4. Step 4: Simplify right side
    252,954.56x = 48,793,267,687.30
  5. Step 5: Solve for x
    x = 48,793,267,687.30/252,954.56
  6. Step 6: Final answer
    x = 192,893.41

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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.