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Finding the Fourth Proportional to 328,078.71, 449,795.88 and 322,100.01

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Solution

The fourth proportional to 328,078.71, 449,795.88 and 322,100.01 is: 441,599.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,078.71 : 449,795.88 = 322,100.01 : x
  2. Step 2: Convert to fraction form
    328,078.71/449,795.88 = 322,100.01/x
  3. Step 3: Cross multiply
    328,078.71x = 449,795.88 × 322,100.01
  4. Step 4: Simplify right side
    328,078.71x = 144,879,257,445.96
  5. Step 5: Solve for x
    x = 144,879,257,445.96/328,078.71
  6. Step 6: Final answer
    x = 441,599.08

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.