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Finding the Fourth Proportional to 250,975.88, 346,347.28 and 137,805.92

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Solution

The fourth proportional to 250,975.88, 346,347.28 and 137,805.92 is: 190,172.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,975.88 : 346,347.28 = 137,805.92 : x
  2. Step 2: Convert to fraction form
    250,975.88/346,347.28 = 137,805.92/x
  3. Step 3: Cross multiply
    250,975.88x = 346,347.28 × 137,805.92
  4. Step 4: Simplify right side
    250,975.88x = 47,728,705,559.90
  5. Step 5: Solve for x
    x = 47,728,705,559.90/250,975.88
  6. Step 6: Final answer
    x = 190,172.48

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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.