Home / 306,921.86-423,525.21-170,945.54

Finding the Fourth Proportional to 306,921.86, 423,525.21 and 170,945.54

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Solution

The fourth proportional to 306,921.86, 423,525.21 and 170,945.54 is: 235,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,921.86 : 423,525.21 = 170,945.54 : x
  2. Step 2: Convert to fraction form
    306,921.86/423,525.21 = 170,945.54/x
  3. Step 3: Cross multiply
    306,921.86x = 423,525.21 × 170,945.54
  4. Step 4: Simplify right side
    306,921.86x = 72,399,745,727.06
  5. Step 5: Solve for x
    x = 72,399,745,727.06/306,921.86
  6. Step 6: Final answer
    x = 235,889.83

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1.5x scale

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.