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Finding the Fourth Proportional to 227,657.70, 341,486.55 and 212,105.70

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Solution

The fourth proportional to 227,657.70, 341,486.55 and 212,105.70 is: 318,158.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,657.70 : 341,486.55 = 212,105.70 : x
  2. Step 2: Convert to fraction form
    227,657.70/341,486.55 = 212,105.70/x
  3. Step 3: Cross multiply
    227,657.70x = 341,486.55 × 212,105.70
  4. Step 4: Simplify right side
    227,657.70x = 72,431,243,728.34
  5. Step 5: Solve for x
    x = 72,431,243,728.34/227,657.70
  6. Step 6: Final answer
    x = 318,158.55

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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.