Home / 380,811.67-525,520.11-211,056.73

Finding the Fourth Proportional to 380,811.67, 525,520.11 and 211,056.73

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Solution

The fourth proportional to 380,811.67, 525,520.11 and 211,056.73 is: 291,258.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,811.67 : 525,520.11 = 211,056.73 : x
  2. Step 2: Convert to fraction form
    380,811.67/525,520.11 = 211,056.73/x
  3. Step 3: Cross multiply
    380,811.67x = 525,520.11 × 211,056.73
  4. Step 4: Simplify right side
    380,811.67x = 110,914,554,910.56
  5. Step 5: Solve for x
    x = 110,914,554,910.56/380,811.67
  6. Step 6: Final answer
    x = 291,258.29

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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.