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Finding the Fourth Proportional to 306,958.80, 423,615.90 and 170,992.71

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Solution

The fourth proportional to 306,958.80, 423,615.90 and 170,992.71 is: 235,977.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,958.80 : 423,615.90 = 170,992.71 : x
  2. Step 2: Convert to fraction form
    306,958.80/423,615.90 = 170,992.71/x
  3. Step 3: Cross multiply
    306,958.80x = 423,615.90 × 170,992.71
  4. Step 4: Simplify right side
    306,958.80x = 72,435,228,194.53
  5. Step 5: Solve for x
    x = 72,435,228,194.53/306,958.80
  6. Step 6: Final answer
    x = 235,977.04

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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.