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Finding the Fourth Proportional to 306,022.40, 459,379.20 and 236,211.20

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Solution

The fourth proportional to 306,022.40, 459,379.20 and 236,211.20 is: 354,583.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,022.40 : 459,379.20 = 236,211.20 : x
  2. Step 2: Convert to fraction form
    306,022.40/459,379.20 = 236,211.20/x
  3. Step 3: Cross multiply
    306,022.40x = 459,379.20 × 236,211.20
  4. Step 4: Simplify right side
    306,022.40x = 108,510,512,087.04
  5. Step 5: Solve for x
    x = 108,510,512,087.04/306,022.40
  6. Step 6: Final answer
    x = 354,583.56

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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.