Home / 211,630.05-317,324.79-163,581.66

Finding the Fourth Proportional to 211,630.05, 317,324.79 and 163,581.66

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Solution

The fourth proportional to 211,630.05, 317,324.79 and 163,581.66 is: 245,279.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,630.05 : 317,324.79 = 163,581.66 : x
  2. Step 2: Convert to fraction form
    211,630.05/317,324.79 = 163,581.66/x
  3. Step 3: Cross multiply
    211,630.05x = 317,324.79 × 163,581.66
  4. Step 4: Simplify right side
    211,630.05x = 51,908,515,907.35
  5. Step 5: Solve for x
    x = 51,908,515,907.35/211,630.05
  6. Step 6: Final answer
    x = 245,279.51

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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.