Home / 300,885.12-415,217.75-163,061.09

Finding the Fourth Proportional to 300,885.12, 415,217.75 and 163,061.09

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Solution

The fourth proportional to 300,885.12, 415,217.75 and 163,061.09 is: 225,022.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,885.12 : 415,217.75 = 163,061.09 : x
  2. Step 2: Convert to fraction form
    300,885.12/415,217.75 = 163,061.09/x
  3. Step 3: Cross multiply
    300,885.12x = 415,217.75 × 163,061.09
  4. Step 4: Simplify right side
    300,885.12x = 67,705,858,902.35
  5. Step 5: Solve for x
    x = 67,705,858,902.35/300,885.12
  6. Step 6: Final answer
    x = 225,022.29

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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.