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Finding the Fourth Proportional to 253,393.48, 349,690.26 and 140,226.76

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Solution

The fourth proportional to 253,393.48, 349,690.26 and 140,226.76 is: 193,516.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,393.48 : 349,690.26 = 140,226.76 : x
  2. Step 2: Convert to fraction form
    253,393.48/349,690.26 = 140,226.76/x
  3. Step 3: Cross multiply
    253,393.48x = 349,690.26 × 140,226.76
  4. Step 4: Simplify right side
    253,393.48x = 49,035,932,163.36
  5. Step 5: Solve for x
    x = 49,035,932,163.36/253,393.48
  6. Step 6: Final answer
    x = 193,516.95

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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.