Home / 256,667.27-384,680.13-123,511.79

Finding the Fourth Proportional to 256,667.27, 384,680.13 and 123,511.79

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Solution

The fourth proportional to 256,667.27, 384,680.13 and 123,511.79 is: 185,113.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,667.27 : 384,680.13 = 123,511.79 : x
  2. Step 2: Convert to fraction form
    256,667.27/384,680.13 = 123,511.79/x
  3. Step 3: Cross multiply
    256,667.27x = 384,680.13 × 123,511.79
  4. Step 4: Simplify right side
    256,667.27x = 47,512,531,433.73
  5. Step 5: Solve for x
    x = 47,512,531,433.73/256,667.27
  6. Step 6: Final answer
    x = 185,113.32

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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.