Home / 258,121.31-356,107.83-190,299.50

Finding the Fourth Proportional to 258,121.31, 356,107.83 and 190,299.50

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Solution

The fourth proportional to 258,121.31, 356,107.83 and 190,299.50 is: 262,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,121.31 : 356,107.83 = 190,299.50 : x
  2. Step 2: Convert to fraction form
    258,121.31/356,107.83 = 190,299.50/x
  3. Step 3: Cross multiply
    258,121.31x = 356,107.83 × 190,299.50
  4. Step 4: Simplify right side
    258,121.31x = 67,767,140,214.55
  5. Step 5: Solve for x
    x = 67,767,140,214.55/258,121.31
  6. Step 6: Final answer
    x = 262,539.89

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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.