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Finding the Fourth Proportional to 353,843.28, 488,312.43 and 192,707.07

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Solution

The fourth proportional to 353,843.28, 488,312.43 and 192,707.07 is: 265,940.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,843.28 : 488,312.43 = 192,707.07 : x
  2. Step 2: Convert to fraction form
    353,843.28/488,312.43 = 192,707.07/x
  3. Step 3: Cross multiply
    353,843.28x = 488,312.43 × 192,707.07
  4. Step 4: Simplify right side
    353,843.28x = 94,101,257,629.88
  5. Step 5: Solve for x
    x = 94,101,257,629.88/353,843.28
  6. Step 6: Final answer
    x = 265,940.50

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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.