Home / 427,984.56-641,427.39-161,427.60

Finding the Fourth Proportional to 427,984.56, 641,427.39 and 161,427.60

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Solution

The fourth proportional to 427,984.56, 641,427.39 and 161,427.60 is: 241,934.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,984.56 : 641,427.39 = 161,427.60 : x
  2. Step 2: Convert to fraction form
    427,984.56/641,427.39 = 161,427.60/x
  3. Step 3: Cross multiply
    427,984.56x = 641,427.39 × 161,427.60
  4. Step 4: Simplify right side
    427,984.56x = 103,544,084,141.96
  5. Step 5: Solve for x
    x = 103,544,084,141.96/427,984.56
  6. Step 6: Final answer
    x = 241,934.16

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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.