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Finding the Fourth Proportional to 202,365.27, 279,264.15 and 111,721.32

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Solution

The fourth proportional to 202,365.27, 279,264.15 and 111,721.32 is: 154,175.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,365.27 : 279,264.15 = 111,721.32 : x
  2. Step 2: Convert to fraction form
    202,365.27/279,264.15 = 111,721.32/x
  3. Step 3: Cross multiply
    202,365.27x = 279,264.15 × 111,721.32
  4. Step 4: Simplify right side
    202,365.27x = 31,199,759,466.68
  5. Step 5: Solve for x
    x = 31,199,759,466.68/202,365.27
  6. Step 6: Final answer
    x = 154,175.46

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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.