Home / 256,021.26-384,032.09-87,542.86

Finding the Fourth Proportional to 256,021.26, 384,032.09 and 87,542.86

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Solution

The fourth proportional to 256,021.26, 384,032.09 and 87,542.86 is: 131,314.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,021.26 : 384,032.09 = 87,542.86 : x
  2. Step 2: Convert to fraction form
    256,021.26/384,032.09 = 87,542.86/x
  3. Step 3: Cross multiply
    256,021.26x = 384,032.09 × 87,542.86
  4. Step 4: Simplify right side
    256,021.26x = 33,619,266,092.58
  5. Step 5: Solve for x
    x = 33,619,266,092.58/256,021.26
  6. Step 6: Final answer
    x = 131,314.35

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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.