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Finding the Fourth Proportional to 256,568.08, 384,865.08 and 79,196.44

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Solution

The fourth proportional to 256,568.08, 384,865.08 and 79,196.44 is: 118,798.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,568.08 : 384,865.08 = 79,196.44 : x
  2. Step 2: Convert to fraction form
    256,568.08/384,865.08 = 79,196.44/x
  3. Step 3: Cross multiply
    256,568.08x = 384,865.08 × 79,196.44
  4. Step 4: Simplify right side
    256,568.08x = 30,479,944,216.32
  5. Step 5: Solve for x
    x = 30,479,944,216.32/256,568.08
  6. Step 6: Final answer
    x = 118,798.66

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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.