Home / 380,865.24-525,610.62-211,099.50

Finding the Fourth Proportional to 380,865.24, 525,610.62 and 211,099.50

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Solution

The fourth proportional to 380,865.24, 525,610.62 and 211,099.50 is: 291,326.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,865.24 : 525,610.62 = 211,099.50 : x
  2. Step 2: Convert to fraction form
    380,865.24/525,610.62 = 211,099.50/x
  3. Step 3: Cross multiply
    380,865.24x = 525,610.62 × 211,099.50
  4. Step 4: Simplify right side
    380,865.24x = 110,956,139,076.69
  5. Step 5: Solve for x
    x = 110,956,139,076.69/380,865.24
  6. Step 6: Final answer
    x = 291,326.50

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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.