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Finding the Fourth Proportional to 449,574.30, 620,501.11 and 268,195.46

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Solution

The fourth proportional to 449,574.30, 620,501.11 and 268,195.46 is: 370,162.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,574.30 : 620,501.11 = 268,195.46 : x
  2. Step 2: Convert to fraction form
    449,574.30/620,501.11 = 268,195.46/x
  3. Step 3: Cross multiply
    449,574.30x = 620,501.11 × 268,195.46
  4. Step 4: Simplify right side
    449,574.30x = 166,415,576,853.97
  5. Step 5: Solve for x
    x = 166,415,576,853.97/449,574.30
  6. Step 6: Final answer
    x = 370,162.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.