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Finding the Fourth Proportional to 321,522.48, 443,720.93 and 178,282.53

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Solution

The fourth proportional to 321,522.48, 443,720.93 and 178,282.53 is: 246,040.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,522.48 : 443,720.93 = 178,282.53 : x
  2. Step 2: Convert to fraction form
    321,522.48/443,720.93 = 178,282.53/x
  3. Step 3: Cross multiply
    321,522.48x = 443,720.93 × 178,282.53
  4. Step 4: Simplify right side
    321,522.48x = 79,107,689,122.94
  5. Step 5: Solve for x
    x = 79,107,689,122.94/321,522.48
  6. Step 6: Final answer
    x = 246,040.93

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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.