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Finding the Fourth Proportional to 239,749.88, 330,855.54 and 130,855.22

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Solution

The fourth proportional to 239,749.88, 330,855.54 and 130,855.22 is: 180,580.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,749.88 : 330,855.54 = 130,855.22 : x
  2. Step 2: Convert to fraction form
    239,749.88/330,855.54 = 130,855.22/x
  3. Step 3: Cross multiply
    239,749.88x = 330,855.54 × 130,855.22
  4. Step 4: Simplify right side
    239,749.88x = 43,294,175,302.06
  5. Step 5: Solve for x
    x = 43,294,175,302.06/239,749.88
  6. Step 6: Final answer
    x = 180,580.59

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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.