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Finding the Fourth Proportional to 321,596.10, 443,829.84 and 178,402.26

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Solution

The fourth proportional to 321,596.10, 443,829.84 and 178,402.26 is: 246,210.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,596.10 : 443,829.84 = 178,402.26 : x
  2. Step 2: Convert to fraction form
    321,596.10/443,829.84 = 178,402.26/x
  3. Step 3: Cross multiply
    321,596.10x = 443,829.84 × 178,402.26
  4. Step 4: Simplify right side
    321,596.10x = 79,180,246,511.44
  5. Step 5: Solve for x
    x = 79,180,246,511.44/321,596.10
  6. Step 6: Final answer
    x = 246,210.22

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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.