Home / 254,447.73-381,090.26-121,421.40

Finding the Fourth Proportional to 254,447.73, 381,090.26 and 121,421.40

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Solution

The fourth proportional to 254,447.73, 381,090.26 and 121,421.40 is: 181,854.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,447.73 : 381,090.26 = 121,421.40 : x
  2. Step 2: Convert to fraction form
    254,447.73/381,090.26 = 121,421.40/x
  3. Step 3: Cross multiply
    254,447.73x = 381,090.26 × 121,421.40
  4. Step 4: Simplify right side
    254,447.73x = 46,272,512,288.46
  5. Step 5: Solve for x
    x = 46,272,512,288.46/254,447.73
  6. Step 6: Final answer
    x = 181,854.69

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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.