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Finding the Fourth Proportional to 321,172.56, 481,397.94 and 152,554.86

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Solution

The fourth proportional to 321,172.56, 481,397.94 and 152,554.86 is: 228,660.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,172.56 : 481,397.94 = 152,554.86 : x
  2. Step 2: Convert to fraction form
    321,172.56/481,397.94 = 152,554.86/x
  3. Step 3: Cross multiply
    321,172.56x = 481,397.94 × 152,554.86
  4. Step 4: Simplify right side
    321,172.56x = 73,439,595,340.99
  5. Step 5: Solve for x
    x = 73,439,595,340.99/321,172.56
  6. Step 6: Final answer
    x = 228,660.86

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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.