Home / 254,186.48-381,212.90-120,801.36

Finding the Fourth Proportional to 254,186.48, 381,212.90 and 120,801.36

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Solution

The fourth proportional to 254,186.48, 381,212.90 and 120,801.36 is: 181,170.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,186.48 : 381,212.90 = 120,801.36 : x
  2. Step 2: Convert to fraction form
    254,186.48/381,212.90 = 120,801.36/x
  3. Step 3: Cross multiply
    254,186.48x = 381,212.90 × 120,801.36
  4. Step 4: Simplify right side
    254,186.48x = 46,051,036,769.54
  5. Step 5: Solve for x
    x = 46,051,036,769.54/254,186.48
  6. Step 6: Final answer
    x = 181,170.28

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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.