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Finding the Fourth Proportional to 239,159.82, 330,055.53 and 131,729.83

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Solution

The fourth proportional to 239,159.82, 330,055.53 and 131,729.83 is: 181,795.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,159.82 : 330,055.53 = 131,729.83 : x
  2. Step 2: Convert to fraction form
    239,159.82/330,055.53 = 131,729.83/x
  3. Step 3: Cross multiply
    239,159.82x = 330,055.53 × 131,729.83
  4. Step 4: Simplify right side
    239,159.82x = 43,478,157,538.33
  5. Step 5: Solve for x
    x = 43,478,157,538.33/239,159.82
  6. Step 6: Final answer
    x = 181,795.41

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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.