Home / 239,376.78-330,316.11-142,561.44

Finding the Fourth Proportional to 239,376.78, 330,316.11 and 142,561.44

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Solution

The fourth proportional to 239,376.78, 330,316.11 and 142,561.44 is: 196,720.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,376.78 : 330,316.11 = 142,561.44 : x
  2. Step 2: Convert to fraction form
    239,376.78/330,316.11 = 142,561.44/x
  3. Step 3: Cross multiply
    239,376.78x = 330,316.11 × 142,561.44
  4. Step 4: Simplify right side
    239,376.78x = 47,090,340,296.80
  5. Step 5: Solve for x
    x = 47,090,340,296.80/239,376.78
  6. Step 6: Final answer
    x = 196,720.59

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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.