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Finding the Fourth Proportional to 354,583.83, 489,338.01 and 193,447.74

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Solution

The fourth proportional to 354,583.83, 489,338.01 and 193,447.74 is: 266,964.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,583.83 : 489,338.01 = 193,447.74 : x
  2. Step 2: Convert to fraction form
    354,583.83/489,338.01 = 193,447.74/x
  3. Step 3: Cross multiply
    354,583.83x = 489,338.01 × 193,447.74
  4. Step 4: Simplify right side
    354,583.83x = 94,661,332,130.60
  5. Step 5: Solve for x
    x = 94,661,332,130.60/354,583.83
  6. Step 6: Final answer
    x = 266,964.61

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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.