Home / 254,581.92-381,291.57-121,555.55

Finding the Fourth Proportional to 254,581.92, 381,291.57 and 121,555.55

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Solution

The fourth proportional to 254,581.92, 381,291.57 and 121,555.55 is: 182,055.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,581.92 : 381,291.57 = 121,555.55 : x
  2. Step 2: Convert to fraction form
    254,581.92/381,291.57 = 121,555.55/x
  3. Step 3: Cross multiply
    254,581.92x = 381,291.57 × 121,555.55
  4. Step 4: Simplify right side
    254,581.92x = 46,348,107,454.94
  5. Step 5: Solve for x
    x = 46,348,107,454.94/254,581.92
  6. Step 6: Final answer
    x = 182,055.77

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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.