Home / 254,530.35-381,878.56-121,393.31

Finding the Fourth Proportional to 254,530.35, 381,878.56 and 121,393.31

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Solution

The fourth proportional to 254,530.35, 381,878.56 and 121,393.31 is: 182,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,530.35 : 381,878.56 = 121,393.31 : x
  2. Step 2: Convert to fraction form
    254,530.35/381,878.56 = 121,393.31/x
  3. Step 3: Cross multiply
    254,530.35x = 381,878.56 × 121,393.31
  4. Step 4: Simplify right side
    254,530.35x = 46,357,501,903.53
  5. Step 5: Solve for x
    x = 46,357,501,903.53/254,530.35
  6. Step 6: Final answer
    x = 182,129.56

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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.