Home / 223,930.86-309,004.25-133,272.20

Finding the Fourth Proportional to 223,930.86, 309,004.25 and 133,272.20

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Solution

The fourth proportional to 223,930.86, 309,004.25 and 133,272.20 is: 183,903.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,930.86 : 309,004.25 = 133,272.20 : x
  2. Step 2: Convert to fraction form
    223,930.86/309,004.25 = 133,272.20/x
  3. Step 3: Cross multiply
    223,930.86x = 309,004.25 × 133,272.20
  4. Step 4: Simplify right side
    223,930.86x = 41,181,673,995.47
  5. Step 5: Solve for x
    x = 41,181,673,995.47/223,930.86
  6. Step 6: Final answer
    x = 183,903.52

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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.