Home / 382,848.12-528,321.42-213,078.60

Finding the Fourth Proportional to 382,848.12, 528,321.42 and 213,078.60

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Solution

The fourth proportional to 382,848.12, 528,321.42 and 213,078.60 is: 294,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,848.12 : 528,321.42 = 213,078.60 : x
  2. Step 2: Convert to fraction form
    382,848.12/528,321.42 = 213,078.60/x
  3. Step 3: Cross multiply
    382,848.12x = 528,321.42 × 213,078.60
  4. Step 4: Simplify right side
    382,848.12x = 112,573,988,523.61
  5. Step 5: Solve for x
    x = 112,573,988,523.61/382,848.12
  6. Step 6: Final answer
    x = 294,043.47

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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.