Home / 213,168.06-317,899.26-210,307.91

Finding the Fourth Proportional to 213,168.06, 317,899.26 and 210,307.91

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Solution

The fourth proportional to 213,168.06, 317,899.26 and 210,307.91 is: 313,633.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,168.06 : 317,899.26 = 210,307.91 : x
  2. Step 2: Convert to fraction form
    213,168.06/317,899.26 = 210,307.91/x
  3. Step 3: Cross multiply
    213,168.06x = 317,899.26 × 210,307.91
  4. Step 4: Simplify right side
    213,168.06x = 66,856,727,371.65
  5. Step 5: Solve for x
    x = 66,856,727,371.65/213,168.06
  6. Step 6: Final answer
    x = 313,633.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.