Home / 254,520.25-381,611.88-121,421.05

Finding the Fourth Proportional to 254,520.25, 381,611.88 and 121,421.05

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Solution

The fourth proportional to 254,520.25, 381,611.88 and 121,421.05 is: 182,051.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,520.25 : 381,611.88 = 121,421.05 : x
  2. Step 2: Convert to fraction form
    254,520.25/381,611.88 = 121,421.05/x
  3. Step 3: Cross multiply
    254,520.25x = 381,611.88 × 121,421.05
  4. Step 4: Simplify right side
    254,520.25x = 46,335,715,162.07
  5. Step 5: Solve for x
    x = 46,335,715,162.07/254,520.25
  6. Step 6: Final answer
    x = 182,051.19

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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.