Home / 217,612.61-300,228.41-142,204.85

Finding the Fourth Proportional to 217,612.61, 300,228.41 and 142,204.85

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Solution

The fourth proportional to 217,612.61, 300,228.41 and 142,204.85 is: 196,192.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,612.61 : 300,228.41 = 142,204.85 : x
  2. Step 2: Convert to fraction form
    217,612.61/300,228.41 = 142,204.85/x
  3. Step 3: Cross multiply
    217,612.61x = 300,228.41 × 142,204.85
  4. Step 4: Simplify right side
    217,612.61x = 42,693,933,797.62
  5. Step 5: Solve for x
    x = 42,693,933,797.62/217,612.61
  6. Step 6: Final answer
    x = 196,192.37

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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.