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Finding the Fourth Proportional to 206,654.20, 309,908.40 and 94,388.20

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Solution

The fourth proportional to 206,654.20, 309,908.40 and 94,388.20 is: 141,549.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,654.20 : 309,908.40 = 94,388.20 : x
  2. Step 2: Convert to fraction form
    206,654.20/309,908.40 = 94,388.20/x
  3. Step 3: Cross multiply
    206,654.20x = 309,908.40 × 94,388.20
  4. Step 4: Simplify right side
    206,654.20x = 29,251,696,040.88
  5. Step 5: Solve for x
    x = 29,251,696,040.88/206,654.20
  6. Step 6: Final answer
    x = 141,549.00

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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.