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Finding the Fourth Proportional to 321,465.21, 482,278.00 and 226,880.15

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Solution

The fourth proportional to 321,465.21, 482,278.00 and 226,880.15 is: 340,376.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,465.21 : 482,278.00 = 226,880.15 : x
  2. Step 2: Convert to fraction form
    321,465.21/482,278.00 = 226,880.15/x
  3. Step 3: Cross multiply
    321,465.21x = 482,278.00 × 226,880.15
  4. Step 4: Simplify right side
    321,465.21x = 109,419,302,428.51
  5. Step 5: Solve for x
    x = 109,419,302,428.51/321,465.21
  6. Step 6: Final answer
    x = 340,376.81

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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.