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Finding the Fourth Proportional to 228,860.40, 343,355.40 and 71,104.80

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Solution

The fourth proportional to 228,860.40, 343,355.40 and 71,104.80 is: 106,677.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,860.40 : 343,355.40 = 71,104.80 : x
  2. Step 2: Convert to fraction form
    228,860.40/343,355.40 = 71,104.80/x
  3. Step 3: Cross multiply
    228,860.40x = 343,355.40 × 71,104.80
  4. Step 4: Simplify right side
    228,860.40x = 24,414,217,045.92
  5. Step 5: Solve for x
    x = 24,414,217,045.92/228,860.40
  6. Step 6: Final answer
    x = 106,677.33

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1.5x scale

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.