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Finding the Fourth Proportional to 282,479, 389,855.58 and 163,247

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Solution

The fourth proportional to 282,479, 389,855.58 and 163,247 is: 225,300.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,479 : 389,855.58 = 163,247 : x
  2. Step 2: Convert to fraction form
    282,479/389,855.58 = 163,247/x
  3. Step 3: Cross multiply
    282,479x = 389,855.58 × 163,247
  4. Step 4: Simplify right side
    282,479x = 63,642,753,868.26
  5. Step 5: Solve for x
    x = 63,642,753,868.26/282,479
  6. Step 6: Final answer
    x = 225,300.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.