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Finding the Fourth Proportional to 354,099.09, 531,119.94 and 140,858.39

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Solution

The fourth proportional to 354,099.09, 531,119.94 and 140,858.39 is: 211,276.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,099.09 : 531,119.94 = 140,858.39 : x
  2. Step 2: Convert to fraction form
    354,099.09/531,119.94 = 140,858.39/x
  3. Step 3: Cross multiply
    354,099.09x = 531,119.94 × 140,858.39
  4. Step 4: Simplify right side
    354,099.09x = 74,812,700,444.88
  5. Step 5: Solve for x
    x = 74,812,700,444.88/354,099.09
  6. Step 6: Final answer
    x = 211,276.17

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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.