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Finding the Fourth Proportional to 308,999.80, 463,062.30 and 271,383.40

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Solution

The fourth proportional to 308,999.80, 463,062.30 and 271,383.40 is: 406,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,999.80 : 463,062.30 = 271,383.40 : x
  2. Step 2: Convert to fraction form
    308,999.80/463,062.30 = 271,383.40/x
  3. Step 3: Cross multiply
    308,999.80x = 463,062.30 × 271,383.40
  4. Step 4: Simplify right side
    308,999.80x = 125,667,421,385.82
  5. Step 5: Solve for x
    x = 125,667,421,385.82/308,999.80
  6. Step 6: Final answer
    x = 406,690.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.