Home / 278,983.92-384,999.06-151,659.18

Finding the Fourth Proportional to 278,983.92, 384,999.06 and 151,659.18

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Solution

The fourth proportional to 278,983.92, 384,999.06 and 151,659.18 is: 209,290.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,983.92 : 384,999.06 = 151,659.18 : x
  2. Step 2: Convert to fraction form
    278,983.92/384,999.06 = 151,659.18/x
  3. Step 3: Cross multiply
    278,983.92x = 384,999.06 × 151,659.18
  4. Step 4: Simplify right side
    278,983.92x = 58,388,641,740.37
  5. Step 5: Solve for x
    x = 58,388,641,740.37/278,983.92
  6. Step 6: Final answer
    x = 209,290.35

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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.