Home / 445,993.27-668,995.37-130,456.55

Finding the Fourth Proportional to 445,993.27, 668,995.37 and 130,456.55

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Solution

The fourth proportional to 445,993.27, 668,995.37 and 130,456.55 is: 195,686.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,993.27 : 668,995.37 = 130,456.55 : x
  2. Step 2: Convert to fraction form
    445,993.27/668,995.37 = 130,456.55/x
  3. Step 3: Cross multiply
    445,993.27x = 668,995.37 × 130,456.55
  4. Step 4: Simplify right side
    445,993.27x = 87,274,827,936.17
  5. Step 5: Solve for x
    x = 87,274,827,936.17/445,993.27
  6. Step 6: Final answer
    x = 195,686.42

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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.