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Finding the Fourth Proportional to 305,611.37, 458,313.24 and 105,885.12

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Solution

The fourth proportional to 305,611.37, 458,313.24 and 105,885.12 is: 158,791.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,611.37 : 458,313.24 = 105,885.12 : x
  2. Step 2: Convert to fraction form
    305,611.37/458,313.24 = 105,885.12/x
  3. Step 3: Cross multiply
    305,611.37x = 458,313.24 × 105,885.12
  4. Step 4: Simplify right side
    305,611.37x = 48,528,552,414.99
  5. Step 5: Solve for x
    x = 48,528,552,414.99/305,611.37
  6. Step 6: Final answer
    x = 158,791.71

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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.