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Finding the Fourth Proportional to 354,583.01, 489,325.72 and 193,441.45

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Solution

The fourth proportional to 354,583.01, 489,325.72 and 193,441.45 is: 266,949.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,583.01 : 489,325.72 = 193,441.45 : x
  2. Step 2: Convert to fraction form
    354,583.01/489,325.72 = 193,441.45/x
  3. Step 3: Cross multiply
    354,583.01x = 489,325.72 × 193,441.45
  4. Step 4: Simplify right side
    354,583.01x = 94,655,876,799.09
  5. Step 5: Solve for x
    x = 94,655,876,799.09/354,583.01
  6. Step 6: Final answer
    x = 266,949.84

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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.