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Finding the Fourth Proportional to 358,608.80, 494,883.81 and 197,478.83

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Solution

The fourth proportional to 358,608.80, 494,883.81 and 197,478.83 is: 272,522.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,608.80 : 494,883.81 = 197,478.83 : x
  2. Step 2: Convert to fraction form
    358,608.80/494,883.81 = 197,478.83/x
  3. Step 3: Cross multiply
    358,608.80x = 494,883.81 × 197,478.83
  4. Step 4: Simplify right side
    358,608.80x = 97,729,073,310.32
  5. Step 5: Solve for x
    x = 97,729,073,310.32/358,608.80
  6. Step 6: Final answer
    x = 272,522.80

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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.