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Finding the Fourth Proportional to 306,097.45, 459,145.53 and 81,457.85

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Solution

The fourth proportional to 306,097.45, 459,145.53 and 81,457.85 is: 122,186.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,097.45 : 459,145.53 = 81,457.85 : x
  2. Step 2: Convert to fraction form
    306,097.45/459,145.53 = 81,457.85/x
  3. Step 3: Cross multiply
    306,097.45x = 459,145.53 × 81,457.85
  4. Step 4: Simplify right side
    306,097.45x = 37,401,008,858.77
  5. Step 5: Solve for x
    x = 37,401,008,858.77/306,097.45
  6. Step 6: Final answer
    x = 122,186.61

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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.