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Finding the Fourth Proportional to 253,059.50, 349,229.40 and 139,889.54

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Solution

The fourth proportional to 253,059.50, 349,229.40 and 139,889.54 is: 193,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,059.50 : 349,229.40 = 139,889.54 : x
  2. Step 2: Convert to fraction form
    253,059.50/349,229.40 = 139,889.54/x
  3. Step 3: Cross multiply
    253,059.50x = 349,229.40 × 139,889.54
  4. Step 4: Simplify right side
    253,059.50x = 48,853,540,120.48
  5. Step 5: Solve for x
    x = 48,853,540,120.48/253,059.50
  6. Step 6: Final answer
    x = 193,051.60

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1.5x scale

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.