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Finding the Fourth Proportional to 145,993.59, 218,990.39 and 35,185.59

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Solution

The fourth proportional to 145,993.59, 218,990.39 and 35,185.59 is: 52,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,993.59 : 218,990.39 = 35,185.59 : x
  2. Step 2: Convert to fraction form
    145,993.59/218,990.39 = 35,185.59/x
  3. Step 3: Cross multiply
    145,993.59x = 218,990.39 × 35,185.59
  4. Step 4: Simplify right side
    145,993.59x = 7,705,305,900.55
  5. Step 5: Solve for x
    x = 7,705,305,900.55/145,993.59
  6. Step 6: Final answer
    x = 52,778.39

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Similar ratio
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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.