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Finding the Fourth Proportional to 316,662.46, 436,984.41 and 173,418.82

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Solution

The fourth proportional to 316,662.46, 436,984.41 and 173,418.82 is: 239,312.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,662.46 : 436,984.41 = 173,418.82 : x
  2. Step 2: Convert to fraction form
    316,662.46/436,984.41 = 173,418.82/x
  3. Step 3: Cross multiply
    316,662.46x = 436,984.41 × 173,418.82
  4. Step 4: Simplify right side
    316,662.46x = 75,781,320,740.60
  5. Step 5: Solve for x
    x = 75,781,320,740.60/316,662.46
  6. Step 6: Final answer
    x = 239,312.61

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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.