Home / 300,212.07-450,372.66-142,439.05

Finding the Fourth Proportional to 300,212.07, 450,372.66 and 142,439.05

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Solution

The fourth proportional to 300,212.07, 450,372.66 and 142,439.05 is: 213,684.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,212.07 : 450,372.66 = 142,439.05 : x
  2. Step 2: Convert to fraction form
    300,212.07/450,372.66 = 142,439.05/x
  3. Step 3: Cross multiply
    300,212.07x = 450,372.66 × 142,439.05
  4. Step 4: Simplify right side
    300,212.07x = 64,150,653,836.37
  5. Step 5: Solve for x
    x = 64,150,653,836.37/300,212.07
  6. Step 6: Final answer
    x = 213,684.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.