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Finding the Fourth Proportional to 319,170.92, 440,635.77 and 211,887.63

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Solution

The fourth proportional to 319,170.92, 440,635.77 and 211,887.63 is: 292,524.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,170.92 : 440,635.77 = 211,887.63 : x
  2. Step 2: Convert to fraction form
    319,170.92/440,635.77 = 211,887.63/x
  3. Step 3: Cross multiply
    319,170.92x = 440,635.77 × 211,887.63
  4. Step 4: Simplify right side
    319,170.92x = 93,365,268,998.53
  5. Step 5: Solve for x
    x = 93,365,268,998.53/319,170.92
  6. Step 6: Final answer
    x = 292,524.36

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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.