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Finding the Fourth Proportional to 316,460.73, 436,716.45 and 173,229.92

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Solution

The fourth proportional to 316,460.73, 436,716.45 and 173,229.92 is: 239,057.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,460.73 : 436,716.45 = 173,229.92 : x
  2. Step 2: Convert to fraction form
    316,460.73/436,716.45 = 173,229.92/x
  3. Step 3: Cross multiply
    316,460.73x = 436,716.45 × 173,229.92
  4. Step 4: Simplify right side
    316,460.73x = 75,652,353,512.60
  5. Step 5: Solve for x
    x = 75,652,353,512.60/316,460.73
  6. Step 6: Final answer
    x = 239,057.63

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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.