Home / 289,636.20-399,676.14-162,287.19

Finding the Fourth Proportional to 289,636.20, 399,676.14 and 162,287.19

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Solution

The fourth proportional to 289,636.20, 399,676.14 and 162,287.19 is: 223,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,636.20 : 399,676.14 = 162,287.19 : x
  2. Step 2: Convert to fraction form
    289,636.20/399,676.14 = 162,287.19/x
  3. Step 3: Cross multiply
    289,636.20x = 399,676.14 × 162,287.19
  4. Step 4: Simplify right side
    289,636.20x = 64,862,317,670.65
  5. Step 5: Solve for x
    x = 64,862,317,670.65/289,636.20
  6. Step 6: Final answer
    x = 223,944.10

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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.