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Finding the Fourth Proportional to 331,893.84, 458,012.64 and 180,990.88

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Solution

The fourth proportional to 331,893.84, 458,012.64 and 180,990.88 is: 249,766.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,893.84 : 458,012.64 = 180,990.88 : x
  2. Step 2: Convert to fraction form
    331,893.84/458,012.64 = 180,990.88/x
  3. Step 3: Cross multiply
    331,893.84x = 458,012.64 × 180,990.88
  4. Step 4: Simplify right side
    331,893.84x = 82,896,110,764.72
  5. Step 5: Solve for x
    x = 82,896,110,764.72/331,893.84
  6. Step 6: Final answer
    x = 249,766.95

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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.