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Finding the Fourth Proportional to 354,954.96, 489,847.93 and 193,820.22

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Solution

The fourth proportional to 354,954.96, 489,847.93 and 193,820.22 is: 267,477.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,954.96 : 489,847.93 = 193,820.22 : x
  2. Step 2: Convert to fraction form
    354,954.96/489,847.93 = 193,820.22/x
  3. Step 3: Cross multiply
    354,954.96x = 489,847.93 × 193,820.22
  4. Step 4: Simplify right side
    354,954.96x = 94,942,433,559.14
  5. Step 5: Solve for x
    x = 94,942,433,559.14/354,954.96
  6. Step 6: Final answer
    x = 267,477.41

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1.5x scale

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.