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Finding the Fourth Proportional to 274,034.77, 378,216.11 and 159,348.89

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Solution

The fourth proportional to 274,034.77, 378,216.11 and 159,348.89 is: 219,929.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,034.77 : 378,216.11 = 159,348.89 : x
  2. Step 2: Convert to fraction form
    274,034.77/378,216.11 = 159,348.89/x
  3. Step 3: Cross multiply
    274,034.77x = 378,216.11 × 159,348.89
  4. Step 4: Simplify right side
    274,034.77x = 60,268,318,652.53
  5. Step 5: Solve for x
    x = 60,268,318,652.53/274,034.77
  6. Step 6: Final answer
    x = 219,929.46

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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.