Home / 254,519.76-381,611.12-121,420.56

Finding the Fourth Proportional to 254,519.76, 381,611.12 and 121,420.56

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Solution

The fourth proportional to 254,519.76, 381,611.12 and 121,420.56 is: 182,050.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,519.76 : 381,611.12 = 121,420.56 : x
  2. Step 2: Convert to fraction form
    254,519.76/381,611.12 = 121,420.56/x
  3. Step 3: Cross multiply
    254,519.76x = 381,611.12 × 121,420.56
  4. Step 4: Simplify right side
    254,519.76x = 46,335,435,892.63
  5. Step 5: Solve for x
    x = 46,335,435,892.63/254,519.76
  6. Step 6: Final answer
    x = 182,050.45

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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.