Home / 278,768.40-384,657.30-164,104.80

Finding the Fourth Proportional to 278,768.40, 384,657.30 and 164,104.80

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Solution

The fourth proportional to 278,768.40, 384,657.30 and 164,104.80 is: 226,439.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,768.40 : 384,657.30 = 164,104.80 : x
  2. Step 2: Convert to fraction form
    278,768.40/384,657.30 = 164,104.80/x
  3. Step 3: Cross multiply
    278,768.40x = 384,657.30 × 164,104.80
  4. Step 4: Simplify right side
    278,768.40x = 63,124,109,285.04
  5. Step 5: Solve for x
    x = 63,124,109,285.04/278,768.40
  6. Step 6: Final answer
    x = 226,439.26

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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.