Home / 278,770.90-384,660.75-164,107.30

Finding the Fourth Proportional to 278,770.90, 384,660.75 and 164,107.30

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Solution

The fourth proportional to 278,770.90, 384,660.75 and 164,107.30 is: 226,442.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,770.90 : 384,660.75 = 164,107.30 : x
  2. Step 2: Convert to fraction form
    278,770.90/384,660.75 = 164,107.30/x
  3. Step 3: Cross multiply
    278,770.90x = 384,660.75 × 164,107.30
  4. Step 4: Simplify right side
    278,770.90x = 63,125,637,098.48
  5. Step 5: Solve for x
    x = 63,125,637,098.48/278,770.90
  6. Step 6: Final answer
    x = 226,442.71

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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.