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Finding the Fourth Proportional to 321,466.56, 443,623.12 and 178,222.92

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Solution

The fourth proportional to 321,466.56, 443,623.12 and 178,222.92 is: 245,947.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,466.56 : 443,623.12 = 178,222.92 : x
  2. Step 2: Convert to fraction form
    321,466.56/443,623.12 = 178,222.92/x
  3. Step 3: Cross multiply
    321,466.56x = 443,623.12 × 178,222.92
  4. Step 4: Simplify right side
    321,466.56x = 79,063,807,825.91
  5. Step 5: Solve for x
    x = 79,063,807,825.91/321,466.56
  6. Step 6: Final answer
    x = 245,947.22

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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.