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Finding the Fourth Proportional to 254,235.25, 350,843.70 and 139,515.85

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Solution

The fourth proportional to 254,235.25, 350,843.70 and 139,515.85 is: 192,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,235.25 : 350,843.70 = 139,515.85 : x
  2. Step 2: Convert to fraction form
    254,235.25/350,843.70 = 139,515.85/x
  3. Step 3: Cross multiply
    254,235.25x = 350,843.70 × 139,515.85
  4. Step 4: Simplify right side
    254,235.25x = 48,948,257,022.65
  5. Step 5: Solve for x
    x = 48,948,257,022.65/254,235.25
  6. Step 6: Final answer
    x = 192,531.35

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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.