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Finding the Fourth Proportional to 491,448.40, 737,561.40 and 192,072.40

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Solution

The fourth proportional to 491,448.40, 737,561.40 and 192,072.40 is: 288,260.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,448.40 : 737,561.40 = 192,072.40 : x
  2. Step 2: Convert to fraction form
    491,448.40/737,561.40 = 192,072.40/x
  3. Step 3: Cross multiply
    491,448.40x = 737,561.40 × 192,072.40
  4. Step 4: Simplify right side
    491,448.40x = 141,665,188,245.36
  5. Step 5: Solve for x
    x = 141,665,188,245.36/491,448.40
  6. Step 6: Final answer
    x = 288,260.55

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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.