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Finding the Fourth Proportional to 250,103.53, 345,175.74 and 142,648.93

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Solution

The fourth proportional to 250,103.53, 345,175.74 and 142,648.93 is: 196,874.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,103.53 : 345,175.74 = 142,648.93 : x
  2. Step 2: Convert to fraction form
    250,103.53/345,175.74 = 142,648.93/x
  3. Step 3: Cross multiply
    250,103.53x = 345,175.74 × 142,648.93
  4. Step 4: Simplify right side
    250,103.53x = 49,238,949,972.96
  5. Step 5: Solve for x
    x = 49,238,949,972.96/250,103.53
  6. Step 6: Final answer
    x = 196,874.27

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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.