Home / 215,804.45-297,998.19-135,370.24

Finding the Fourth Proportional to 215,804.45, 297,998.19 and 135,370.24

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Solution

The fourth proportional to 215,804.45, 297,998.19 and 135,370.24 is: 186,928.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,804.45 : 297,998.19 = 135,370.24 : x
  2. Step 2: Convert to fraction form
    215,804.45/297,998.19 = 135,370.24/x
  3. Step 3: Cross multiply
    215,804.45x = 297,998.19 × 135,370.24
  4. Step 4: Simplify right side
    215,804.45x = 40,340,085,754.87
  5. Step 5: Solve for x
    x = 40,340,085,754.87/215,804.45
  6. Step 6: Final answer
    x = 186,928.89

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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.