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Finding the Fourth Proportional to 300,171.76, 449,536.08 and 171,698.67

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Solution

The fourth proportional to 300,171.76, 449,536.08 and 171,698.67 is: 257,135.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,171.76 : 449,536.08 = 171,698.67 : x
  2. Step 2: Convert to fraction form
    300,171.76/449,536.08 = 171,698.67/x
  3. Step 3: Cross multiply
    300,171.76x = 449,536.08 × 171,698.67
  4. Step 4: Simplify right side
    300,171.76x = 77,184,746,191.11
  5. Step 5: Solve for x
    x = 77,184,746,191.11/300,171.76
  6. Step 6: Final answer
    x = 257,135.27

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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.