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Finding the Fourth Proportional to 321,338.07, 481,531.95 and 303,365.03

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Solution

The fourth proportional to 321,338.07, 481,531.95 and 303,365.03 is: 454,598.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,338.07 : 481,531.95 = 303,365.03 : x
  2. Step 2: Convert to fraction form
    321,338.07/481,531.95 = 303,365.03/x
  3. Step 3: Cross multiply
    321,338.07x = 481,531.95 × 303,365.03
  4. Step 4: Simplify right side
    321,338.07x = 146,079,952,050.05
  5. Step 5: Solve for x
    x = 146,079,952,050.05/321,338.07
  6. Step 6: Final answer
    x = 454,598.96

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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.