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Finding the Fourth Proportional to 248,378.67, 342,109.62 and 190,908.09

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Solution

The fourth proportional to 248,378.67, 342,109.62 and 190,908.09 is: 262,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,378.67 : 342,109.62 = 190,908.09 : x
  2. Step 2: Convert to fraction form
    248,378.67/342,109.62 = 190,908.09/x
  3. Step 3: Cross multiply
    248,378.67x = 342,109.62 × 190,908.09
  4. Step 4: Simplify right side
    248,378.67x = 65,311,494,124.83
  5. Step 5: Solve for x
    x = 65,311,494,124.83/248,378.67
  6. Step 6: Final answer
    x = 262,951.30

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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.