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Finding the Fourth Proportional to 300,006.80, 450,010.20 and 265,014.80

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Solution

The fourth proportional to 300,006.80, 450,010.20 and 265,014.80 is: 397,522.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,006.80 : 450,010.20 = 265,014.80 : x
  2. Step 2: Convert to fraction form
    300,006.80/450,010.20 = 265,014.80/x
  3. Step 3: Cross multiply
    300,006.80x = 450,010.20 × 265,014.80
  4. Step 4: Simplify right side
    300,006.80x = 119,259,363,150.96
  5. Step 5: Solve for x
    x = 119,259,363,150.96/300,006.80
  6. Step 6: Final answer
    x = 397,522.20

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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.