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Finding the Fourth Proportional to 209,324.90, 288,875.97 and 119,918.18

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Solution

The fourth proportional to 209,324.90, 288,875.97 and 119,918.18 is: 165,491.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,324.90 : 288,875.97 = 119,918.18 : x
  2. Step 2: Convert to fraction form
    209,324.90/288,875.97 = 119,918.18/x
  3. Step 3: Cross multiply
    209,324.90x = 288,875.97 × 119,918.18
  4. Step 4: Simplify right side
    209,324.90x = 34,641,479,123.75
  5. Step 5: Solve for x
    x = 34,641,479,123.75/209,324.90
  6. Step 6: Final answer
    x = 165,491.44

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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.