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Finding the Fourth Proportional to 297,729, 446,592.81 and 129,227.49

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Solution

The fourth proportional to 297,729, 446,592.81 and 129,227.49 is: 193,840.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,729 : 446,592.81 = 129,227.49 : x
  2. Step 2: Convert to fraction form
    297,729/446,592.81 = 129,227.49/x
  3. Step 3: Cross multiply
    297,729x = 446,592.81 × 129,227.49
  4. Step 4: Simplify right side
    297,729x = 57,712,067,888.35
  5. Step 5: Solve for x
    x = 57,712,067,888.35/297,729
  6. Step 6: Final answer
    x = 193,840.94

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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.