Home / 278,982.48-384,860.52-165,725.04

Finding the Fourth Proportional to 278,982.48, 384,860.52 and 165,725.04

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Solution

The fourth proportional to 278,982.48, 384,860.52 and 165,725.04 is: 228,620.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,982.48 : 384,860.52 = 165,725.04 : x
  2. Step 2: Convert to fraction form
    278,982.48/384,860.52 = 165,725.04/x
  3. Step 3: Cross multiply
    278,982.48x = 384,860.52 × 165,725.04
  4. Step 4: Simplify right side
    278,982.48x = 63,781,025,071.42
  5. Step 5: Solve for x
    x = 63,781,025,071.42/278,982.48
  6. Step 6: Final answer
    x = 228,620.18

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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.