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Finding the Fourth Proportional to 274,704.86, 379,074.67 and 153,818.44

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Solution

The fourth proportional to 274,704.86, 379,074.67 and 153,818.44 is: 212,259.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,704.86 : 379,074.67 = 153,818.44 : x
  2. Step 2: Convert to fraction form
    274,704.86/379,074.67 = 153,818.44/x
  3. Step 3: Cross multiply
    274,704.86x = 379,074.67 × 153,818.44
  4. Step 4: Simplify right side
    274,704.86x = 58,308,673,050.68
  5. Step 5: Solve for x
    x = 58,308,673,050.68/274,704.86
  6. Step 6: Final answer
    x = 212,259.34

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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.