Home / 215,930.56-297,984.69-120,443.44

Finding the Fourth Proportional to 215,930.56, 297,984.69 and 120,443.44

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Solution

The fourth proportional to 215,930.56, 297,984.69 and 120,443.44 is: 166,212.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,930.56 : 297,984.69 = 120,443.44 : x
  2. Step 2: Convert to fraction form
    215,930.56/297,984.69 = 120,443.44/x
  3. Step 3: Cross multiply
    215,930.56x = 297,984.69 × 120,443.44
  4. Step 4: Simplify right side
    215,930.56x = 35,890,301,130.93
  5. Step 5: Solve for x
    x = 35,890,301,130.93/215,930.56
  6. Step 6: Final answer
    x = 166,212.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.