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Finding the Fourth Proportional to 270,553.80, 405,888.30 and 83,584.20

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Solution

The fourth proportional to 270,553.80, 405,888.30 and 83,584.20 is: 125,394.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,553.80 : 405,888.30 = 83,584.20 : x
  2. Step 2: Convert to fraction form
    270,553.80/405,888.30 = 83,584.20/x
  3. Step 3: Cross multiply
    270,553.80x = 405,888.30 × 83,584.20
  4. Step 4: Simplify right side
    270,553.80x = 33,925,848,844.86
  5. Step 5: Solve for x
    x = 33,925,848,844.86/270,553.80
  6. Step 6: Final answer
    x = 125,394.09

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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.