Home / 286,178.28-394,927.55-178,810.57

Finding the Fourth Proportional to 286,178.28, 394,927.55 and 178,810.57

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Solution

The fourth proportional to 286,178.28, 394,927.55 and 178,810.57 is: 246,759.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,178.28 : 394,927.55 = 178,810.57 : x
  2. Step 2: Convert to fraction form
    286,178.28/394,927.55 = 178,810.57/x
  3. Step 3: Cross multiply
    286,178.28x = 394,927.55 × 178,810.57
  4. Step 4: Simplify right side
    286,178.28x = 70,617,220,324.20
  5. Step 5: Solve for x
    x = 70,617,220,324.20/286,178.28
  6. Step 6: Final answer
    x = 246,759.54

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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.