Home / 278,845.28-384,807.12-151,518.08

Finding the Fourth Proportional to 278,845.28, 384,807.12 and 151,518.08

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Solution

The fourth proportional to 278,845.28, 384,807.12 and 151,518.08 is: 209,095.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,845.28 : 384,807.12 = 151,518.08 : x
  2. Step 2: Convert to fraction form
    278,845.28/384,807.12 = 151,518.08/x
  3. Step 3: Cross multiply
    278,845.28x = 384,807.12 × 151,518.08
  4. Step 4: Simplify right side
    278,845.28x = 58,305,235,992.73
  5. Step 5: Solve for x
    x = 58,305,235,992.73/278,845.28
  6. Step 6: Final answer
    x = 209,095.29

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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.