Home / 256,756.26-354,372.66-172,021.08

Finding the Fourth Proportional to 256,756.26, 354,372.66 and 172,021.08

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Solution

The fourth proportional to 256,756.26, 354,372.66 and 172,021.08 is: 237,421.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,756.26 : 354,372.66 = 172,021.08 : x
  2. Step 2: Convert to fraction form
    256,756.26/354,372.66 = 172,021.08/x
  3. Step 3: Cross multiply
    256,756.26x = 354,372.66 × 172,021.08
  4. Step 4: Simplify right side
    256,756.26x = 60,959,567,695.67
  5. Step 5: Solve for x
    x = 60,959,567,695.67/256,756.26
  6. Step 6: Final answer
    x = 237,421.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.