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Finding the Fourth Proportional to 353,255.43, 487,487.88 and 192,107.01

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Solution

The fourth proportional to 353,255.43, 487,487.88 and 192,107.01 is: 265,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,255.43 : 487,487.88 = 192,107.01 : x
  2. Step 2: Convert to fraction form
    353,255.43/487,487.88 = 192,107.01/x
  3. Step 3: Cross multiply
    353,255.43x = 487,487.88 × 192,107.01
  4. Step 4: Simplify right side
    353,255.43x = 93,649,839,038.04
  5. Step 5: Solve for x
    x = 93,649,839,038.04/353,255.43
  6. Step 6: Final answer
    x = 265,105.16

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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.