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Finding the Fourth Proportional to 491,426.26, 737,138.54 and 154,496.36

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Solution

The fourth proportional to 491,426.26, 737,138.54 and 154,496.36 is: 231,744.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,426.26 : 737,138.54 = 154,496.36 : x
  2. Step 2: Convert to fraction form
    491,426.26/737,138.54 = 154,496.36/x
  3. Step 3: Cross multiply
    491,426.26x = 737,138.54 × 154,496.36
  4. Step 4: Simplify right side
    491,426.26x = 113,885,223,474.80
  5. Step 5: Solve for x
    x = 113,885,223,474.80/491,426.26
  6. Step 6: Final answer
    x = 231,744.28

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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.