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Finding the Fourth Proportional to 167,976, 251,964 and 69,480

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Solution

The fourth proportional to 167,976, 251,964 and 69,480 is: 104,220

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,976 : 251,964 = 69,480 : x
  2. Step 2: Convert to fraction form
    167,976/251,964 = 69,480/x
  3. Step 3: Cross multiply
    167,976x = 251,964 × 69,480
  4. Step 4: Simplify right side
    167,976x = 17,506,458,720
  5. Step 5: Solve for x
    x = 17,506,458,720/167,976
  6. Step 6: Final answer
    x = 104,220

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.