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Finding the Fourth Proportional to 239,159.52, 330,055.09 and 131,729.52

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Solution

The fourth proportional to 239,159.52, 330,055.09 and 131,729.52 is: 181,794.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,159.52 : 330,055.09 = 131,729.52 : x
  2. Step 2: Convert to fraction form
    239,159.52/330,055.09 = 131,729.52/x
  3. Step 3: Cross multiply
    239,159.52x = 330,055.09 × 131,729.52
  4. Step 4: Simplify right side
    239,159.52x = 43,477,997,095.47
  5. Step 5: Solve for x
    x = 43,477,997,095.47/239,159.52
  6. Step 6: Final answer
    x = 181,794.97

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1.5x scale

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.