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Finding the Fourth Proportional to 301,561.89, 451,653.87 and 143,901.06

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Solution

The fourth proportional to 301,561.89, 451,653.87 and 143,901.06 is: 215,522.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,561.89 : 451,653.87 = 143,901.06 : x
  2. Step 2: Convert to fraction form
    301,561.89/451,653.87 = 143,901.06/x
  3. Step 3: Cross multiply
    301,561.89x = 451,653.87 × 143,901.06
  4. Step 4: Simplify right side
    301,561.89x = 64,993,469,492.03
  5. Step 5: Solve for x
    x = 64,993,469,492.03/301,561.89
  6. Step 6: Final answer
    x = 215,522.82

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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.