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Finding the Fourth Proportional to 270,468.80, 405,703.20 and 263,556.80

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Solution

The fourth proportional to 270,468.80, 405,703.20 and 263,556.80 is: 395,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,468.80 : 405,703.20 = 263,556.80 : x
  2. Step 2: Convert to fraction form
    270,468.80/405,703.20 = 263,556.80/x
  3. Step 3: Cross multiply
    270,468.80x = 405,703.20 × 263,556.80
  4. Step 4: Simplify right side
    270,468.80x = 106,925,837,141.76
  5. Step 5: Solve for x
    x = 106,925,837,141.76/270,468.80
  6. Step 6: Final answer
    x = 395,335.20

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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.