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Finding the Fourth Proportional to 242,986.44, 335,321.43 and 135,556.47

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Solution

The fourth proportional to 242,986.44, 335,321.43 and 135,556.47 is: 187,068.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,986.44 : 335,321.43 = 135,556.47 : x
  2. Step 2: Convert to fraction form
    242,986.44/335,321.43 = 135,556.47/x
  3. Step 3: Cross multiply
    242,986.44x = 335,321.43 × 135,556.47
  4. Step 4: Simplify right side
    242,986.44x = 45,454,989,366.15
  5. Step 5: Solve for x
    x = 45,454,989,366.15/242,986.44
  6. Step 6: Final answer
    x = 187,068.01

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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.