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Finding the Fourth Proportional to 300,077.80, 450,116.70 and 181,979.80

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Solution

The fourth proportional to 300,077.80, 450,116.70 and 181,979.80 is: 272,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,077.80 : 450,116.70 = 181,979.80 : x
  2. Step 2: Convert to fraction form
    300,077.80/450,116.70 = 181,979.80/x
  3. Step 3: Cross multiply
    300,077.80x = 450,116.70 × 181,979.80
  4. Step 4: Simplify right side
    300,077.80x = 81,912,147,042.66
  5. Step 5: Solve for x
    x = 81,912,147,042.66/300,077.80
  6. Step 6: Final answer
    x = 272,969.70

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1.5x scale

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.