Home / 209,131.47-312,876.04-161,385.84

Finding the Fourth Proportional to 209,131.47, 312,876.04 and 161,385.84

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Solution

The fourth proportional to 209,131.47, 312,876.04 and 161,385.84 is: 241,445.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,131.47 : 312,876.04 = 161,385.84 : x
  2. Step 2: Convert to fraction form
    209,131.47/312,876.04 = 161,385.84/x
  3. Step 3: Cross multiply
    209,131.47x = 312,876.04 × 161,385.84
  4. Step 4: Simplify right side
    209,131.47x = 50,493,763,764.27
  5. Step 5: Solve for x
    x = 50,493,763,764.27/209,131.47
  6. Step 6: Final answer
    x = 241,445.08

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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.