Home / 380,556.37-525,145.26-208,440.01

Finding the Fourth Proportional to 380,556.37, 525,145.26 and 208,440.01

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Solution

The fourth proportional to 380,556.37, 525,145.26 and 208,440.01 is: 287,634.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,556.37 : 525,145.26 = 208,440.01 : x
  2. Step 2: Convert to fraction form
    380,556.37/525,145.26 = 208,440.01/x
  3. Step 3: Cross multiply
    380,556.37x = 525,145.26 × 208,440.01
  4. Step 4: Simplify right side
    380,556.37x = 109,461,283,245.85
  5. Step 5: Solve for x
    x = 109,461,283,245.85/380,556.37
  6. Step 6: Final answer
    x = 287,634.87

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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.