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Finding the Fourth Proportional to 325,802.56, 449,606.94 and 198,478.15

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Solution

The fourth proportional to 325,802.56, 449,606.94 and 198,478.15 is: 273,899.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,802.56 : 449,606.94 = 198,478.15 : x
  2. Step 2: Convert to fraction form
    325,802.56/449,606.94 = 198,478.15/x
  3. Step 3: Cross multiply
    325,802.56x = 449,606.94 × 198,478.15
  4. Step 4: Simplify right side
    325,802.56x = 89,237,153,678.36
  5. Step 5: Solve for x
    x = 89,237,153,678.36/325,802.56
  6. Step 6: Final answer
    x = 273,899.49

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1.5x scale

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.