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Finding the Fourth Proportional to 320,861.83, 442,813.92 and 183,043.79

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Solution

The fourth proportional to 320,861.83, 442,813.92 and 183,043.79 is: 252,614.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,861.83 : 442,813.92 = 183,043.79 : x
  2. Step 2: Convert to fraction form
    320,861.83/442,813.92 = 183,043.79/x
  3. Step 3: Cross multiply
    320,861.83x = 442,813.92 × 183,043.79
  4. Step 4: Simplify right side
    320,861.83x = 81,054,338,181.56
  5. Step 5: Solve for x
    x = 81,054,338,181.56/320,861.83
  6. Step 6: Final answer
    x = 252,614.46

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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.