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Finding the Fourth Proportional to 306,012.12, 459,793.16 and 193,745.12

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Solution

The fourth proportional to 306,012.12, 459,793.16 and 193,745.12 is: 291,108.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,012.12 : 459,793.16 = 193,745.12 : x
  2. Step 2: Convert to fraction form
    306,012.12/459,793.16 = 193,745.12/x
  3. Step 3: Cross multiply
    306,012.12x = 459,793.16 × 193,745.12
  4. Step 4: Simplify right side
    306,012.12x = 89,082,680,959.38
  5. Step 5: Solve for x
    x = 89,082,680,959.38/306,012.12
  6. Step 6: Final answer
    x = 291,108.34

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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.