Home / 254,178.20-381,019.44-121,022.66

Finding the Fourth Proportional to 254,178.20, 381,019.44 and 121,022.66

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Solution

The fourth proportional to 254,178.20, 381,019.44 and 121,022.66 is: 181,415.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,178.20 : 381,019.44 = 121,022.66 : x
  2. Step 2: Convert to fraction form
    254,178.20/381,019.44 = 121,022.66/x
  3. Step 3: Cross multiply
    254,178.20x = 381,019.44 × 121,022.66
  4. Step 4: Simplify right side
    254,178.20x = 46,111,986,140.51
  5. Step 5: Solve for x
    x = 46,111,986,140.51/254,178.20
  6. Step 6: Final answer
    x = 181,415.98

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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.