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Finding the Fourth Proportional to 275,313.80, 412,970.70 and 264,816.20

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Solution

The fourth proportional to 275,313.80, 412,970.70 and 264,816.20 is: 397,224.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,313.80 : 412,970.70 = 264,816.20 : x
  2. Step 2: Convert to fraction form
    275,313.80/412,970.70 = 264,816.20/x
  3. Step 3: Cross multiply
    275,313.80x = 412,970.70 × 264,816.20
  4. Step 4: Simplify right side
    275,313.80x = 109,361,331,485.34
  5. Step 5: Solve for x
    x = 109,361,331,485.34/275,313.80
  6. Step 6: Final answer
    x = 397,224.30

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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.