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Finding the Fourth Proportional to 265,901.36, 398,927.64 and 108,242.96

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Solution

The fourth proportional to 265,901.36, 398,927.64 and 108,242.96 is: 162,395.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,901.36 : 398,927.64 = 108,242.96 : x
  2. Step 2: Convert to fraction form
    265,901.36/398,927.64 = 108,242.96/x
  3. Step 3: Cross multiply
    265,901.36x = 398,927.64 × 108,242.96
  4. Step 4: Simplify right side
    265,901.36x = 43,181,108,579.41
  5. Step 5: Solve for x
    x = 43,181,108,579.41/265,901.36
  6. Step 6: Final answer
    x = 162,395.22

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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.