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Finding the Fourth Proportional to 305,884.25, 422,108.53 and 169,926.76

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Solution

The fourth proportional to 305,884.25, 422,108.53 and 169,926.76 is: 234,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,884.25 : 422,108.53 = 169,926.76 : x
  2. Step 2: Convert to fraction form
    305,884.25/422,108.53 = 169,926.76/x
  3. Step 3: Cross multiply
    305,884.25x = 422,108.53 × 169,926.76
  4. Step 4: Simplify right side
    305,884.25x = 71,727,533,786.90
  5. Step 5: Solve for x
    x = 71,727,533,786.90/305,884.25
  6. Step 6: Final answer
    x = 234,492.40

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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.