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Finding the Fourth Proportional to 256,483.83, 384,732.32 and 121,516.30

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Solution

The fourth proportional to 256,483.83, 384,732.32 and 121,516.30 is: 182,277.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,483.83 : 384,732.32 = 121,516.30 : x
  2. Step 2: Convert to fraction form
    256,483.83/384,732.32 = 121,516.30/x
  3. Step 3: Cross multiply
    256,483.83x = 384,732.32 × 121,516.30
  4. Step 4: Simplify right side
    256,483.83x = 46,751,246,447.40
  5. Step 5: Solve for x
    x = 46,751,246,447.40/256,483.83
  6. Step 6: Final answer
    x = 182,277.56

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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.