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Finding the Fourth Proportional to 353,989.88, 488,504.12 and 192,844.56

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Solution

The fourth proportional to 353,989.88, 488,504.12 and 192,844.56 is: 266,124.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,989.88 : 488,504.12 = 192,844.56 : x
  2. Step 2: Convert to fraction form
    353,989.88/488,504.12 = 192,844.56/x
  3. Step 3: Cross multiply
    353,989.88x = 488,504.12 × 192,844.56
  4. Step 4: Simplify right side
    353,989.88x = 94,205,362,079.59
  5. Step 5: Solve for x
    x = 94,205,362,079.59/353,989.88
  6. Step 6: Final answer
    x = 266,124.45

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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.