Home / 254,742.48-381,531-121,716.24

Finding the Fourth Proportional to 254,742.48, 381,531 and 121,716.24

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Solution

The fourth proportional to 254,742.48, 381,531 and 121,716.24 is: 182,295.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,742.48 : 381,531 = 121,716.24 : x
  2. Step 2: Convert to fraction form
    254,742.48/381,531 = 121,716.24/x
  3. Step 3: Cross multiply
    254,742.48x = 381,531 × 121,716.24
  4. Step 4: Simplify right side
    254,742.48x = 46,438,518,763.44
  5. Step 5: Solve for x
    x = 46,438,518,763.44/254,742.48
  6. Step 6: Final answer
    x = 182,295.94

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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.