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Finding the Fourth Proportional to 354,729.58, 489,522.63 and 193,587.37

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Solution

The fourth proportional to 354,729.58, 489,522.63 and 193,587.37 is: 267,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,729.58 : 489,522.63 = 193,587.37 : x
  2. Step 2: Convert to fraction form
    354,729.58/489,522.63 = 193,587.37/x
  3. Step 3: Cross multiply
    354,729.58x = 489,522.63 × 193,587.37
  4. Step 4: Simplify right side
    354,729.58x = 94,765,398,497.18
  5. Step 5: Solve for x
    x = 94,765,398,497.18/354,729.58
  6. Step 6: Final answer
    x = 267,148.28

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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.