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Finding the Fourth Proportional to 311,393.16, 465,383.51 and 227,330.35

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Solution

The fourth proportional to 311,393.16, 465,383.51 and 227,330.35 is: 339,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,393.16 : 465,383.51 = 227,330.35 : x
  2. Step 2: Convert to fraction form
    311,393.16/465,383.51 = 227,330.35/x
  3. Step 3: Cross multiply
    311,393.16x = 465,383.51 × 227,330.35
  4. Step 4: Simplify right side
    311,393.16x = 105,795,794,764.91
  5. Step 5: Solve for x
    x = 105,795,794,764.91/311,393.16
  6. Step 6: Final answer
    x = 339,749.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.