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Finding the Fourth Proportional to 305,896.70, 458,845.05 and 231,247.10

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Solution

The fourth proportional to 305,896.70, 458,845.05 and 231,247.10 is: 346,870.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,896.70 : 458,845.05 = 231,247.10 : x
  2. Step 2: Convert to fraction form
    305,896.70/458,845.05 = 231,247.10/x
  3. Step 3: Cross multiply
    305,896.70x = 458,845.05 × 231,247.10
  4. Step 4: Simplify right side
    305,896.70x = 106,106,587,161.86
  5. Step 5: Solve for x
    x = 106,106,587,161.86/305,896.70
  6. Step 6: Final answer
    x = 346,870.65

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Similar ratio
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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.