Home / 255,078.28-382,453.39-121,955.59

Finding the Fourth Proportional to 255,078.28, 382,453.39 and 121,955.59

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Solution

The fourth proportional to 255,078.28, 382,453.39 and 121,955.59 is: 182,854.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,078.28 : 382,453.39 = 121,955.59 : x
  2. Step 2: Convert to fraction form
    255,078.28/382,453.39 = 121,955.59/x
  3. Step 3: Cross multiply
    255,078.28x = 382,453.39 × 121,955.59
  4. Step 4: Simplify right side
    255,078.28x = 46,642,328,824.95
  5. Step 5: Solve for x
    x = 46,642,328,824.95/255,078.28
  6. Step 6: Final answer
    x = 182,854.96

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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.