Home / 209,203.22-313,802.10-51,433.04

Finding the Fourth Proportional to 209,203.22, 313,802.10 and 51,433.04

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Solution

The fourth proportional to 209,203.22, 313,802.10 and 51,433.04 is: 77,148.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,203.22 : 313,802.10 = 51,433.04 : x
  2. Step 2: Convert to fraction form
    209,203.22/313,802.10 = 51,433.04/x
  3. Step 3: Cross multiply
    209,203.22x = 313,802.10 × 51,433.04
  4. Step 4: Simplify right side
    209,203.22x = 16,139,796,745.89
  5. Step 5: Solve for x
    x = 16,139,796,745.89/209,203.22
  6. Step 6: Final answer
    x = 77,148.89

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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.