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Finding the Fourth Proportional to 179,810.80, 270,007.80 and 120,907.60

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Solution

The fourth proportional to 179,810.80, 270,007.80 and 120,907.60 is: 181,557.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,810.80 : 270,007.80 = 120,907.60 : x
  2. Step 2: Convert to fraction form
    179,810.80/270,007.80 = 120,907.60/x
  3. Step 3: Cross multiply
    179,810.80x = 270,007.80 × 120,907.60
  4. Step 4: Simplify right side
    179,810.80x = 32,645,995,079.28
  5. Step 5: Solve for x
    x = 32,645,995,079.28/179,810.80
  6. Step 6: Final answer
    x = 181,557.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.