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Finding the Fourth Proportional to 443,899.63, 612,581.57 and 239,950

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Solution

The fourth proportional to 443,899.63, 612,581.57 and 239,950 is: 331,131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,899.63 : 612,581.57 = 239,950 : x
  2. Step 2: Convert to fraction form
    443,899.63/612,581.57 = 239,950/x
  3. Step 3: Cross multiply
    443,899.63x = 612,581.57 × 239,950
  4. Step 4: Simplify right side
    443,899.63x = 146,988,947,721.50
  5. Step 5: Solve for x
    x = 146,988,947,721.50/443,899.63
  6. Step 6: Final answer
    x = 331,131.04

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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.