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Finding the Fourth Proportional to 300,014.64, 450,022.40 and 122,521.66

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Solution

The fourth proportional to 300,014.64, 450,022.40 and 122,521.66 is: 183,782.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,014.64 : 450,022.40 = 122,521.66 : x
  2. Step 2: Convert to fraction form
    300,014.64/450,022.40 = 122,521.66/x
  3. Step 3: Cross multiply
    300,014.64x = 450,022.40 × 122,521.66
  4. Step 4: Simplify right side
    300,014.64x = 55,137,491,485.18
  5. Step 5: Solve for x
    x = 55,137,491,485.18/300,014.64
  6. Step 6: Final answer
    x = 183,782.67

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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.