Home / 274,487.32-378,491.70-178,816.60

Finding the Fourth Proportional to 274,487.32, 378,491.70 and 178,816.60

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Solution

The fourth proportional to 274,487.32, 378,491.70 and 178,816.60 is: 246,570.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,487.32 : 378,491.70 = 178,816.60 : x
  2. Step 2: Convert to fraction form
    274,487.32/378,491.70 = 178,816.60/x
  3. Step 3: Cross multiply
    274,487.32x = 378,491.70 × 178,816.60
  4. Step 4: Simplify right side
    274,487.32x = 67,680,598,922.22
  5. Step 5: Solve for x
    x = 67,680,598,922.22/274,487.32
  6. Step 6: Final answer
    x = 246,570.95

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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.