Home / 547,985.52-821,856.78-168,843.96

Finding the Fourth Proportional to 547,985.52, 821,856.78 and 168,843.96

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Solution

The fourth proportional to 547,985.52, 821,856.78 and 168,843.96 is: 253,228.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,985.52 : 821,856.78 = 168,843.96 : x
  2. Step 2: Convert to fraction form
    547,985.52/821,856.78 = 168,843.96/x
  3. Step 3: Cross multiply
    547,985.52x = 821,856.78 × 168,843.96
  4. Step 4: Simplify right side
    547,985.52x = 138,765,553,288.05
  5. Step 5: Solve for x
    x = 138,765,553,288.05/547,985.52
  6. Step 6: Final answer
    x = 253,228.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.