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Finding the Fourth Proportional to 300,320.80, 450,481.20 and 295,655.20

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Solution

The fourth proportional to 300,320.80, 450,481.20 and 295,655.20 is: 443,482.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,320.80 : 450,481.20 = 295,655.20 : x
  2. Step 2: Convert to fraction form
    300,320.80/450,481.20 = 295,655.20/x
  3. Step 3: Cross multiply
    300,320.80x = 450,481.20 × 295,655.20
  4. Step 4: Simplify right side
    300,320.80x = 133,187,109,282.24
  5. Step 5: Solve for x
    x = 133,187,109,282.24/300,320.80
  6. Step 6: Final answer
    x = 443,482.80

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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.