Home / 278,936.83-384,933.36-151,612.12

Finding the Fourth Proportional to 278,936.83, 384,933.36 and 151,612.12

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Solution

The fourth proportional to 278,936.83, 384,933.36 and 151,612.12 is: 209,225.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,936.83 : 384,933.36 = 151,612.12 : x
  2. Step 2: Convert to fraction form
    278,936.83/384,933.36 = 151,612.12/x
  3. Step 3: Cross multiply
    278,936.83x = 384,933.36 × 151,612.12
  4. Step 4: Simplify right side
    278,936.83x = 58,360,562,768.32
  5. Step 5: Solve for x
    x = 58,360,562,768.32/278,936.83
  6. Step 6: Final answer
    x = 209,225.02

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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.