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Finding the Fourth Proportional to 299,654.20, 449,999.70 and 194,937.40

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Solution

The fourth proportional to 299,654.20, 449,999.70 and 194,937.40 is: 292,743.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,654.20 : 449,999.70 = 194,937.40 : x
  2. Step 2: Convert to fraction form
    299,654.20/449,999.70 = 194,937.40/x
  3. Step 3: Cross multiply
    299,654.20x = 449,999.70 × 194,937.40
  4. Step 4: Simplify right side
    299,654.20x = 87,721,771,518.78
  5. Step 5: Solve for x
    x = 87,721,771,518.78/299,654.20
  6. Step 6: Final answer
    x = 292,743.34

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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.