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Finding the Fourth Proportional to 366,938.80, 550,408.20 and 323,636.20

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Solution

The fourth proportional to 366,938.80, 550,408.20 and 323,636.20 is: 485,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,938.80 : 550,408.20 = 323,636.20 : x
  2. Step 2: Convert to fraction form
    366,938.80/550,408.20 = 323,636.20/x
  3. Step 3: Cross multiply
    366,938.80x = 550,408.20 × 323,636.20
  4. Step 4: Simplify right side
    366,938.80x = 178,132,018,296.84
  5. Step 5: Solve for x
    x = 178,132,018,296.84/366,938.80
  6. Step 6: Final answer
    x = 485,454.30

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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.