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Finding the Fourth Proportional to 228,969.06, 315,686.94 and 163,635.96

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Solution

The fourth proportional to 228,969.06, 315,686.94 and 163,635.96 is: 225,610.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,969.06 : 315,686.94 = 163,635.96 : x
  2. Step 2: Convert to fraction form
    228,969.06/315,686.94 = 163,635.96/x
  3. Step 3: Cross multiply
    228,969.06x = 315,686.94 × 163,635.96
  4. Step 4: Simplify right side
    228,969.06x = 51,657,735,486.36
  5. Step 5: Solve for x
    x = 51,657,735,486.36/228,969.06
  6. Step 6: Final answer
    x = 225,610.11

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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.