Home / 278,912.59-384,899.42-151,588.18

Finding the Fourth Proportional to 278,912.59, 384,899.42 and 151,588.18

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Solution

The fourth proportional to 278,912.59, 384,899.42 and 151,588.18 is: 209,191.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,912.59 : 384,899.42 = 151,588.18 : x
  2. Step 2: Convert to fraction form
    278,912.59/384,899.42 = 151,588.18/x
  3. Step 3: Cross multiply
    278,912.59x = 384,899.42 × 151,588.18
  4. Step 4: Simplify right side
    278,912.59x = 58,346,202,560.86
  5. Step 5: Solve for x
    x = 58,346,202,560.86/278,912.59
  6. Step 6: Final answer
    x = 209,191.71

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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.