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Finding the Fourth Proportional to 300,172.76, 449,537.58 and 171,699.67

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Solution

The fourth proportional to 300,172.76, 449,537.58 and 171,699.67 is: 257,136.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,172.76 : 449,537.58 = 171,699.67 : x
  2. Step 2: Convert to fraction form
    300,172.76/449,537.58 = 171,699.67/x
  3. Step 3: Cross multiply
    300,172.76x = 449,537.58 × 171,699.67
  4. Step 4: Simplify right side
    300,172.76x = 77,185,454,138.60
  5. Step 5: Solve for x
    x = 77,185,454,138.60/300,172.76
  6. Step 6: Final answer
    x = 257,136.77

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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.