Home / 211,880.23-317,819.63-133,049.81

Finding the Fourth Proportional to 211,880.23, 317,819.63 and 133,049.81

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Solution

The fourth proportional to 211,880.23, 317,819.63 and 133,049.81 is: 199,574.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,880.23 : 317,819.63 = 133,049.81 : x
  2. Step 2: Convert to fraction form
    211,880.23/317,819.63 = 133,049.81/x
  3. Step 3: Cross multiply
    211,880.23x = 317,819.63 × 133,049.81
  4. Step 4: Simplify right side
    211,880.23x = 42,285,842,512.94
  5. Step 5: Solve for x
    x = 42,285,842,512.94/211,880.23
  6. Step 6: Final answer
    x = 199,574.27

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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.