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Finding the Fourth Proportional to 265,057.81, 397,714.42 and 131,949.79

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Solution

The fourth proportional to 265,057.81, 397,714.42 and 131,949.79 is: 197,988.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,057.81 : 397,714.42 = 131,949.79 : x
  2. Step 2: Convert to fraction form
    265,057.81/397,714.42 = 131,949.79/x
  3. Step 3: Cross multiply
    265,057.81x = 397,714.42 × 131,949.79
  4. Step 4: Simplify right side
    265,057.81x = 52,478,333,369.62
  5. Step 5: Solve for x
    x = 52,478,333,369.62/265,057.81
  6. Step 6: Final answer
    x = 197,988.26

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1.5x scale

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.