Home / 388,555.05-582,865.37-108,072.30

Finding the Fourth Proportional to 388,555.05, 582,865.37 and 108,072.30

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Solution

The fourth proportional to 388,555.05, 582,865.37 and 108,072.30 is: 162,117.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,555.05 : 582,865.37 = 108,072.30 : x
  2. Step 2: Convert to fraction form
    388,555.05/582,865.37 = 108,072.30/x
  3. Step 3: Cross multiply
    388,555.05x = 582,865.37 × 108,072.30
  4. Step 4: Simplify right side
    388,555.05x = 62,991,600,585.89
  5. Step 5: Solve for x
    x = 62,991,600,585.89/388,555.05
  6. Step 6: Final answer
    x = 162,117.57

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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.