Home / 383,009.88-528,544.26-213,240.36

Finding the Fourth Proportional to 383,009.88, 528,544.26 and 213,240.36

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Solution

The fourth proportional to 383,009.88, 528,544.26 and 213,240.36 is: 294,266.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,009.88 : 528,544.26 = 213,240.36 : x
  2. Step 2: Convert to fraction form
    383,009.88/528,544.26 = 213,240.36/x
  3. Step 3: Cross multiply
    383,009.88x = 528,544.26 × 213,240.36
  4. Step 4: Simplify right side
    383,009.88x = 112,706,968,278.33
  5. Step 5: Solve for x
    x = 112,706,968,278.33/383,009.88
  6. Step 6: Final answer
    x = 294,266.48

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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.