Home / 217,611.11-300,226.34-142,203.35

Finding the Fourth Proportional to 217,611.11, 300,226.34 and 142,203.35

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Solution

The fourth proportional to 217,611.11, 300,226.34 and 142,203.35 is: 196,190.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,611.11 : 300,226.34 = 142,203.35 : x
  2. Step 2: Convert to fraction form
    217,611.11/300,226.34 = 142,203.35/x
  3. Step 3: Cross multiply
    217,611.11x = 300,226.34 × 142,203.35
  4. Step 4: Simplify right side
    217,611.11x = 42,693,190,160.62
  5. Step 5: Solve for x
    x = 42,693,190,160.62/217,611.11
  6. Step 6: Final answer
    x = 196,190.31

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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.