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Finding the Fourth Proportional to 256,614.25, 384,896.63 and 79,073.59

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Solution

The fourth proportional to 256,614.25, 384,896.63 and 79,073.59 is: 118,602.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,614.25 : 384,896.63 = 79,073.59 : x
  2. Step 2: Convert to fraction form
    256,614.25/384,896.63 = 79,073.59/x
  3. Step 3: Cross multiply
    256,614.25x = 384,896.63 × 79,073.59
  4. Step 4: Simplify right side
    256,614.25x = 30,435,157,548.44
  5. Step 5: Solve for x
    x = 30,435,157,548.44/256,614.25
  6. Step 6: Final answer
    x = 118,602.76

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1.5x scale

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.