Home / 306,629.88-423,144.98-170,663.86

Finding the Fourth Proportional to 306,629.88, 423,144.98 and 170,663.86

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Solution

The fourth proportional to 306,629.88, 423,144.98 and 170,663.86 is: 235,513.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,629.88 : 423,144.98 = 170,663.86 : x
  2. Step 2: Convert to fraction form
    306,629.88/423,144.98 = 170,663.86/x
  3. Step 3: Cross multiply
    306,629.88x = 423,144.98 × 170,663.86
  4. Step 4: Simplify right side
    306,629.88x = 72,215,555,626.42
  5. Step 5: Solve for x
    x = 72,215,555,626.42/306,629.88
  6. Step 6: Final answer
    x = 235,513.76

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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.