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Finding the Fourth Proportional to 321,885.48, 444,283.60 and 219,952.15

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Solution

The fourth proportional to 321,885.48, 444,283.60 and 219,952.15 is: 303,589.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,885.48 : 444,283.60 = 219,952.15 : x
  2. Step 2: Convert to fraction form
    321,885.48/444,283.60 = 219,952.15/x
  3. Step 3: Cross multiply
    321,885.48x = 444,283.60 × 219,952.15
  4. Step 4: Simplify right side
    321,885.48x = 97,721,133,029.74
  5. Step 5: Solve for x
    x = 97,721,133,029.74/321,885.48
  6. Step 6: Final answer
    x = 303,589.75

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1.5x scale

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.