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Finding the Fourth Proportional to 306,045.97, 422,335 and 170,076.44

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Solution

The fourth proportional to 306,045.97, 422,335 and 170,076.44 is: 234,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,045.97 : 422,335 = 170,076.44 : x
  2. Step 2: Convert to fraction form
    306,045.97/422,335 = 170,076.44/x
  3. Step 3: Cross multiply
    306,045.97x = 422,335 × 170,076.44
  4. Step 4: Simplify right side
    306,045.97x = 71,829,233,287.40
  5. Step 5: Solve for x
    x = 71,829,233,287.40/306,045.97
  6. Step 6: Final answer
    x = 234,700.80

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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.