Home / 211,942.20-292,466.70-121,297.80

Finding the Fourth Proportional to 211,942.20, 292,466.70 and 121,297.80

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Solution

The fourth proportional to 211,942.20, 292,466.70 and 121,297.80 is: 167,383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,942.20 : 292,466.70 = 121,297.80 : x
  2. Step 2: Convert to fraction form
    211,942.20/292,466.70 = 121,297.80/x
  3. Step 3: Cross multiply
    211,942.20x = 292,466.70 × 121,297.80
  4. Step 4: Simplify right side
    211,942.20x = 35,475,567,283.26
  5. Step 5: Solve for x
    x = 35,475,567,283.26/211,942.20
  6. Step 6: Final answer
    x = 167,383.22

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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.