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Finding the Fourth Proportional to 259,299.45, 389,096.79 and 207,041.10

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Solution

The fourth proportional to 259,299.45, 389,096.79 and 207,041.10 is: 310,679.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,299.45 : 389,096.79 = 207,041.10 : x
  2. Step 2: Convert to fraction form
    259,299.45/389,096.79 = 207,041.10/x
  3. Step 3: Cross multiply
    259,299.45x = 389,096.79 × 207,041.10
  4. Step 4: Simplify right side
    259,299.45x = 80,559,027,408.07
  5. Step 5: Solve for x
    x = 80,559,027,408.07/259,299.45
  6. Step 6: Final answer
    x = 310,679.52

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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.