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Finding the Fourth Proportional to 228,227.80, 342,341.70 and 148,912.60

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Solution

The fourth proportional to 228,227.80, 342,341.70 and 148,912.60 is: 223,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,227.80 : 342,341.70 = 148,912.60 : x
  2. Step 2: Convert to fraction form
    228,227.80/342,341.70 = 148,912.60/x
  3. Step 3: Cross multiply
    228,227.80x = 342,341.70 × 148,912.60
  4. Step 4: Simplify right side
    228,227.80x = 50,978,992,635.42
  5. Step 5: Solve for x
    x = 50,978,992,635.42/228,227.80
  6. Step 6: Final answer
    x = 223,368.90

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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.