Home / 305,196.44-421,176.15-169,236.12

Finding the Fourth Proportional to 305,196.44, 421,176.15 and 169,236.12

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Solution

The fourth proportional to 305,196.44, 421,176.15 and 169,236.12 is: 233,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,196.44 : 421,176.15 = 169,236.12 : x
  2. Step 2: Convert to fraction form
    305,196.44/421,176.15 = 169,236.12/x
  3. Step 3: Cross multiply
    305,196.44x = 421,176.15 × 169,236.12
  4. Step 4: Simplify right side
    305,196.44x = 71,278,217,462.54
  5. Step 5: Solve for x
    x = 71,278,217,462.54/305,196.44
  6. Step 6: Final answer
    x = 233,548.65

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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.