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Finding the Fourth Proportional to 439,584.80, 658,858.80 and 229,114.40

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Solution

The fourth proportional to 439,584.80, 658,858.80 and 229,114.40 is: 343,401.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,584.80 : 658,858.80 = 229,114.40 : x
  2. Step 2: Convert to fraction form
    439,584.80/658,858.80 = 229,114.40/x
  3. Step 3: Cross multiply
    439,584.80x = 658,858.80 × 229,114.40
  4. Step 4: Simplify right side
    439,584.80x = 150,954,038,646.72
  5. Step 5: Solve for x
    x = 150,954,038,646.72/439,584.80
  6. Step 6: Final answer
    x = 343,401.41

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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.