Home / 212,943.51-319,481.78-63,184.55

Finding the Fourth Proportional to 212,943.51, 319,481.78 and 63,184.55

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Solution

The fourth proportional to 212,943.51, 319,481.78 and 63,184.55 is: 94,796.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,943.51 : 319,481.78 = 63,184.55 : x
  2. Step 2: Convert to fraction form
    212,943.51/319,481.78 = 63,184.55/x
  3. Step 3: Cross multiply
    212,943.51x = 319,481.78 × 63,184.55
  4. Step 4: Simplify right side
    212,943.51x = 20,186,310,589.17
  5. Step 5: Solve for x
    x = 20,186,310,589.17/212,943.51
  6. Step 6: Final answer
    x = 94,796.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.