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Finding the Fourth Proportional to 253,563.48, 349,922.97 and 138,846.96

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Solution

The fourth proportional to 253,563.48, 349,922.97 and 138,846.96 is: 191,611.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,563.48 : 349,922.97 = 138,846.96 : x
  2. Step 2: Convert to fraction form
    253,563.48/349,922.97 = 138,846.96/x
  3. Step 3: Cross multiply
    253,563.48x = 349,922.97 × 138,846.96
  4. Step 4: Simplify right side
    253,563.48x = 48,585,740,618.67
  5. Step 5: Solve for x
    x = 48,585,740,618.67/253,563.48
  6. Step 6: Final answer
    x = 191,611.74

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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.