Home / 225,637.48-311,369.04-135,043.36

Finding the Fourth Proportional to 225,637.48, 311,369.04 and 135,043.36

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Solution

The fourth proportional to 225,637.48, 311,369.04 and 135,043.36 is: 186,353.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,637.48 : 311,369.04 = 135,043.36 : x
  2. Step 2: Convert to fraction form
    225,637.48/311,369.04 = 135,043.36/x
  3. Step 3: Cross multiply
    225,637.48x = 311,369.04 × 135,043.36
  4. Step 4: Simplify right side
    225,637.48x = 42,048,321,361.57
  5. Step 5: Solve for x
    x = 42,048,321,361.57/225,637.48
  6. Step 6: Final answer
    x = 186,353.44

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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.