Home / 254,171.09-381,259.37-76,679.64

Finding the Fourth Proportional to 254,171.09, 381,259.37 and 76,679.64

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Solution

The fourth proportional to 254,171.09, 381,259.37 and 76,679.64 is: 115,020.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,171.09 : 381,259.37 = 76,679.64 : x
  2. Step 2: Convert to fraction form
    254,171.09/381,259.37 = 76,679.64/x
  3. Step 3: Cross multiply
    254,171.09x = 381,259.37 × 76,679.64
  4. Step 4: Simplify right side
    254,171.09x = 29,234,830,854.83
  5. Step 5: Solve for x
    x = 29,234,830,854.83/254,171.09
  6. Step 6: Final answer
    x = 115,020.29

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1.5x scale

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.