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Finding the Fourth Proportional to 274,523.61, 378,846.45 and 158,172.77

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Solution

The fourth proportional to 274,523.61, 378,846.45 and 158,172.77 is: 218,280.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,523.61 : 378,846.45 = 158,172.77 : x
  2. Step 2: Convert to fraction form
    274,523.61/378,846.45 = 158,172.77/x
  3. Step 3: Cross multiply
    274,523.61x = 378,846.45 × 158,172.77
  4. Step 4: Simplify right side
    274,523.61x = 59,923,192,755.13
  5. Step 5: Solve for x
    x = 59,923,192,755.13/274,523.61
  6. Step 6: Final answer
    x = 218,280.66

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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.