Home / 305,142.56-421,120.08-192,062.24

Finding the Fourth Proportional to 305,142.56, 421,120.08 and 192,062.24

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Solution

The fourth proportional to 305,142.56, 421,120.08 and 192,062.24 is: 265,060.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,142.56 : 421,120.08 = 192,062.24 : x
  2. Step 2: Convert to fraction form
    305,142.56/421,120.08 = 192,062.24/x
  3. Step 3: Cross multiply
    305,142.56x = 421,120.08 × 192,062.24
  4. Step 4: Simplify right side
    305,142.56x = 80,881,265,873.78
  5. Step 5: Solve for x
    x = 80,881,265,873.78/305,142.56
  6. Step 6: Final answer
    x = 265,060.59

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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.