Home / 286,555.30-395,323.67-178,938.50

Finding the Fourth Proportional to 286,555.30, 395,323.67 and 178,938.50

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Solution

The fourth proportional to 286,555.30, 395,323.67 and 178,938.50 is: 246,858.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,555.30 : 395,323.67 = 178,938.50 : x
  2. Step 2: Convert to fraction form
    286,555.30/395,323.67 = 178,938.50/x
  3. Step 3: Cross multiply
    286,555.30x = 395,323.67 × 178,938.50
  4. Step 4: Simplify right side
    286,555.30x = 70,738,622,995.02
  5. Step 5: Solve for x
    x = 70,738,622,995.02/286,555.30
  6. Step 6: Final answer
    x = 246,858.54

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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.