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Finding the Fourth Proportional to 250,639.26, 345,904.04 and 137,483.88

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Solution

The fourth proportional to 250,639.26, 345,904.04 and 137,483.88 is: 189,739.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,639.26 : 345,904.04 = 137,483.88 : x
  2. Step 2: Convert to fraction form
    250,639.26/345,904.04 = 137,483.88/x
  3. Step 3: Cross multiply
    250,639.26x = 345,904.04 × 137,483.88
  4. Step 4: Simplify right side
    250,639.26x = 47,556,228,573.44
  5. Step 5: Solve for x
    x = 47,556,228,573.44/250,639.26
  6. Step 6: Final answer
    x = 189,739.75

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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.