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Finding the Fourth Proportional to 248,714.80, 342,982.59 and 157,913.12

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Solution

The fourth proportional to 248,714.80, 342,982.59 and 157,913.12 is: 217,765.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,714.80 : 342,982.59 = 157,913.12 : x
  2. Step 2: Convert to fraction form
    248,714.80/342,982.59 = 157,913.12/x
  3. Step 3: Cross multiply
    248,714.80x = 342,982.59 × 157,913.12
  4. Step 4: Simplify right side
    248,714.80x = 54,161,450,103.02
  5. Step 5: Solve for x
    x = 54,161,450,103.02/248,714.80
  6. Step 6: Final answer
    x = 217,765.29

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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.