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Finding the Fourth Proportional to 228,838.60, 343,257.90 and 194,278.60

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Solution

The fourth proportional to 228,838.60, 343,257.90 and 194,278.60 is: 291,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,838.60 : 343,257.90 = 194,278.60 : x
  2. Step 2: Convert to fraction form
    228,838.60/343,257.90 = 194,278.60/x
  3. Step 3: Cross multiply
    228,838.60x = 343,257.90 × 194,278.60
  4. Step 4: Simplify right side
    228,838.60x = 66,687,664,250.94
  5. Step 5: Solve for x
    x = 66,687,664,250.94/228,838.60
  6. Step 6: Final answer
    x = 291,417.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.