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Finding the Fourth Proportional to 306,281.82, 422,632.17 and 170,281.62

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Solution

The fourth proportional to 306,281.82, 422,632.17 and 170,281.62 is: 234,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,281.82 : 422,632.17 = 170,281.62 : x
  2. Step 2: Convert to fraction form
    306,281.82/422,632.17 = 170,281.62/x
  3. Step 3: Cross multiply
    306,281.82x = 422,632.17 × 170,281.62
  4. Step 4: Simplify right side
    306,281.82x = 71,966,490,571.72
  5. Step 5: Solve for x
    x = 71,966,490,571.72/306,281.82
  6. Step 6: Final answer
    x = 234,968.21

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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.