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Finding the Fourth Proportional to 250,355, 345,498 and 137,185.04

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Solution

The fourth proportional to 250,355, 345,498 and 137,185.04 is: 189,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,355 : 345,498 = 137,185.04 : x
  2. Step 2: Convert to fraction form
    250,355/345,498 = 137,185.04/x
  3. Step 3: Cross multiply
    250,355x = 345,498 × 137,185.04
  4. Step 4: Simplify right side
    250,355x = 47,397,156,949.92
  5. Step 5: Solve for x
    x = 47,397,156,949.92/250,355
  6. Step 6: Final answer
    x = 189,319.79

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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.