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Finding the Fourth Proportional to 354,525, 489,246 and 193,383.48

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Solution

The fourth proportional to 354,525, 489,246 and 193,383.48 is: 266,870.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,525 : 489,246 = 193,383.48 : x
  2. Step 2: Convert to fraction form
    354,525/489,246 = 193,383.48/x
  3. Step 3: Cross multiply
    354,525x = 489,246 × 193,383.48
  4. Step 4: Simplify right side
    354,525x = 94,612,094,056.08
  5. Step 5: Solve for x
    x = 94,612,094,056.08/354,525
  6. Step 6: Final answer
    x = 266,870.02

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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.