Home / 380,832.45-525,528.54-219,677.88

Finding the Fourth Proportional to 380,832.45, 525,528.54 and 219,677.88

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Solution

The fourth proportional to 380,832.45, 525,528.54 and 219,677.88 is: 303,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,832.45 : 525,528.54 = 219,677.88 : x
  2. Step 2: Convert to fraction form
    380,832.45/525,528.54 = 219,677.88/x
  3. Step 3: Cross multiply
    380,832.45x = 525,528.54 × 219,677.88
  4. Step 4: Simplify right side
    380,832.45x = 115,446,995,546.70
  5. Step 5: Solve for x
    x = 115,446,995,546.70/380,832.45
  6. Step 6: Final answer
    x = 303,143.80

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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.