Home / 380,811.11-525,519.32-211,056.17

Finding the Fourth Proportional to 380,811.11, 525,519.32 and 211,056.17

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Solution

The fourth proportional to 380,811.11, 525,519.32 and 211,056.17 is: 291,257.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,811.11 : 525,519.32 = 211,056.17 : x
  2. Step 2: Convert to fraction form
    380,811.11/525,519.32 = 211,056.17/x
  3. Step 3: Cross multiply
    380,811.11x = 525,519.32 × 211,056.17
  4. Step 4: Simplify right side
    380,811.11x = 110,914,091,257.33
  5. Step 5: Solve for x
    x = 110,914,091,257.33/380,811.11
  6. Step 6: Final answer
    x = 291,257.50

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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.