Home / 381,077.36-525,848.86-219,984.31

Finding the Fourth Proportional to 381,077.36, 525,848.86 and 219,984.31

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Solution

The fourth proportional to 381,077.36, 525,848.86 and 219,984.31 is: 303,556.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,077.36 : 525,848.86 = 219,984.31 : x
  2. Step 2: Convert to fraction form
    381,077.36/525,848.86 = 219,984.31/x
  3. Step 3: Cross multiply
    381,077.36x = 525,848.86 × 219,984.31
  4. Step 4: Simplify right side
    381,077.36x = 115,678,497,531.47
  5. Step 5: Solve for x
    x = 115,678,497,531.47/381,077.36
  6. Step 6: Final answer
    x = 303,556.47

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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.