Home / 382,672.12-528,112.80-212,906.64

Finding the Fourth Proportional to 382,672.12, 528,112.80 and 212,906.64

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Solution

The fourth proportional to 382,672.12, 528,112.80 and 212,906.64 is: 293,825.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,672.12 : 528,112.80 = 212,906.64 : x
  2. Step 2: Convert to fraction form
    382,672.12/528,112.80 = 212,906.64/x
  3. Step 3: Cross multiply
    382,672.12x = 528,112.80 × 212,906.64
  4. Step 4: Simplify right side
    382,672.12x = 112,438,721,788.99
  5. Step 5: Solve for x
    x = 112,438,721,788.99/382,672.12
  6. Step 6: Final answer
    x = 293,825.23

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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.