Home / 306,136.21-422,473.04-168,320.97

Finding the Fourth Proportional to 306,136.21, 422,473.04 and 168,320.97

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Solution

The fourth proportional to 306,136.21, 422,473.04 and 168,320.97 is: 232,285.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,136.21 : 422,473.04 = 168,320.97 : x
  2. Step 2: Convert to fraction form
    306,136.21/422,473.04 = 168,320.97/x
  3. Step 3: Cross multiply
    306,136.21x = 422,473.04 × 168,320.97
  4. Step 4: Simplify right side
    306,136.21x = 71,111,071,891.65
  5. Step 5: Solve for x
    x = 71,111,071,891.65/306,136.21
  6. Step 6: Final answer
    x = 232,285.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.