Home / 380,811.05-525,519.24-211,056.11

Finding the Fourth Proportional to 380,811.05, 525,519.24 and 211,056.11

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Solution

The fourth proportional to 380,811.05, 525,519.24 and 211,056.11 is: 291,257.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,811.05 : 525,519.24 = 211,056.11 : x
  2. Step 2: Convert to fraction form
    380,811.05/525,519.24 = 211,056.11/x
  3. Step 3: Cross multiply
    380,811.05x = 525,519.24 × 211,056.11
  4. Step 4: Simplify right side
    380,811.05x = 110,914,046,659.12
  5. Step 5: Solve for x
    x = 110,914,046,659.12/380,811.05
  6. Step 6: Final answer
    x = 291,257.43

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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.