Home / 256,290.15-384,544.58-123,101.85

Finding the Fourth Proportional to 256,290.15, 384,544.58 and 123,101.85

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Solution

The fourth proportional to 256,290.15, 384,544.58 and 123,101.85 is: 184,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,290.15 : 384,544.58 = 123,101.85 : x
  2. Step 2: Convert to fraction form
    256,290.15/384,544.58 = 123,101.85/x
  3. Step 3: Cross multiply
    256,290.15x = 384,544.58 × 123,101.85
  4. Step 4: Simplify right side
    256,290.15x = 47,338,148,589.96
  5. Step 5: Solve for x
    x = 47,338,148,589.96/256,290.15
  6. Step 6: Final answer
    x = 184,705.30

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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.