Home / 256,281.20-384,130.05-113,912.62

Finding the Fourth Proportional to 256,281.20, 384,130.05 and 113,912.62

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Solution

The fourth proportional to 256,281.20, 384,130.05 and 113,912.62 is: 170,739.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,281.20 : 384,130.05 = 113,912.62 : x
  2. Step 2: Convert to fraction form
    256,281.20/384,130.05 = 113,912.62/x
  3. Step 3: Cross multiply
    256,281.20x = 384,130.05 × 113,912.62
  4. Step 4: Simplify right side
    256,281.20x = 43,757,260,416.23
  5. Step 5: Solve for x
    x = 43,757,260,416.23/256,281.20
  6. Step 6: Final answer
    x = 170,739.25

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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.