Home / 309,884.22-463,829.72-159,920.21

Finding the Fourth Proportional to 309,884.22, 463,829.72 and 159,920.21

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Solution

The fourth proportional to 309,884.22, 463,829.72 and 159,920.21 is: 239,365.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,884.22 : 463,829.72 = 159,920.21 : x
  2. Step 2: Convert to fraction form
    309,884.22/463,829.72 = 159,920.21/x
  3. Step 3: Cross multiply
    309,884.22x = 463,829.72 × 159,920.21
  4. Step 4: Simplify right side
    309,884.22x = 74,175,743,107.89
  5. Step 5: Solve for x
    x = 74,175,743,107.89/309,884.22
  6. Step 6: Final answer
    x = 239,365.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.