Home / 278,144.13-383,902.43-163,436.25

Finding the Fourth Proportional to 278,144.13, 383,902.43 and 163,436.25

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Solution

The fourth proportional to 278,144.13, 383,902.43 and 163,436.25 is: 225,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,144.13 : 383,902.43 = 163,436.25 : x
  2. Step 2: Convert to fraction form
    278,144.13/383,902.43 = 163,436.25/x
  3. Step 3: Cross multiply
    278,144.13x = 383,902.43 × 163,436.25
  4. Step 4: Simplify right side
    278,144.13x = 62,743,572,707.91
  5. Step 5: Solve for x
    x = 62,743,572,707.91/278,144.13
  6. Step 6: Final answer
    x = 225,579.35

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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.