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Finding the Fourth Proportional to 250,260, 345,358.98 and 137,083.20

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Solution

The fourth proportional to 250,260, 345,358.98 and 137,083.20 is: 189,174.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,260 : 345,358.98 = 137,083.20 : x
  2. Step 2: Convert to fraction form
    250,260/345,358.98 = 137,083.20/x
  3. Step 3: Cross multiply
    250,260x = 345,358.98 × 137,083.20
  4. Step 4: Simplify right side
    250,260x = 47,342,914,127.14
  5. Step 5: Solve for x
    x = 47,342,914,127.14/250,260
  6. Step 6: Final answer
    x = 189,174.91

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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.