Home / 278,451.36-384,259.68-151,127.04

Finding the Fourth Proportional to 278,451.36, 384,259.68 and 151,127.04

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Solution

The fourth proportional to 278,451.36, 384,259.68 and 151,127.04 is: 208,553.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,451.36 : 384,259.68 = 151,127.04 : x
  2. Step 2: Convert to fraction form
    278,451.36/384,259.68 = 151,127.04/x
  3. Step 3: Cross multiply
    278,451.36x = 384,259.68 × 151,127.04
  4. Step 4: Simplify right side
    278,451.36x = 58,072,028,029.75
  5. Step 5: Solve for x
    x = 58,072,028,029.75/278,451.36
  6. Step 6: Final answer
    x = 208,553.58

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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.