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Finding the Fourth Proportional to 397,181.59, 548,235.98 and 253,942.20

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Solution

The fourth proportional to 397,181.59, 548,235.98 and 253,942.20 is: 350,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,181.59 : 548,235.98 = 253,942.20 : x
  2. Step 2: Convert to fraction form
    397,181.59/548,235.98 = 253,942.20/x
  3. Step 3: Cross multiply
    397,181.59x = 548,235.98 × 253,942.20
  4. Step 4: Simplify right side
    397,181.59x = 139,220,250,562.93
  5. Step 5: Solve for x
    x = 139,220,250,562.93/397,181.59
  6. Step 6: Final answer
    x = 350,520.40

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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.