Home / 278,861.10-383,936.67-236,352.30

Finding the Fourth Proportional to 278,861.10, 383,936.67 and 236,352.30

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Solution

The fourth proportional to 278,861.10, 383,936.67 and 236,352.30 is: 325,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,861.10 : 383,936.67 = 236,352.30 : x
  2. Step 2: Convert to fraction form
    278,861.10/383,936.67 = 236,352.30/x
  3. Step 3: Cross multiply
    278,861.10x = 383,936.67 × 236,352.30
  4. Step 4: Simplify right side
    278,861.10x = 90,744,315,008.84
  5. Step 5: Solve for x
    x = 90,744,315,008.84/278,861.10
  6. Step 6: Final answer
    x = 325,410.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.