Home / 211,612.49-317,507.76-131,717.27

Finding the Fourth Proportional to 211,612.49, 317,507.76 and 131,717.27

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Solution

The fourth proportional to 211,612.49, 317,507.76 and 131,717.27 is: 197,631.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,612.49 : 317,507.76 = 131,717.27 : x
  2. Step 2: Convert to fraction form
    211,612.49/317,507.76 = 131,717.27/x
  3. Step 3: Cross multiply
    211,612.49x = 317,507.76 × 131,717.27
  4. Step 4: Simplify right side
    211,612.49x = 41,821,255,351.02
  5. Step 5: Solve for x
    x = 41,821,255,351.02/211,612.49
  6. Step 6: Final answer
    x = 197,631.32

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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.