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Finding the Fourth Proportional to 277,987.51, 416,981.26 and 67,623.62

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Solution

The fourth proportional to 277,987.51, 416,981.26 and 67,623.62 is: 101,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,987.51 : 416,981.26 = 67,623.62 : x
  2. Step 2: Convert to fraction form
    277,987.51/416,981.26 = 67,623.62/x
  3. Step 3: Cross multiply
    277,987.51x = 416,981.26 × 67,623.62
  4. Step 4: Simplify right side
    277,987.51x = 28,197,782,273.36
  5. Step 5: Solve for x
    x = 28,197,782,273.36/277,987.51
  6. Step 6: Final answer
    x = 101,435.43

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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.