Home / 305,145.56-421,124.22-192,065.24

Finding the Fourth Proportional to 305,145.56, 421,124.22 and 192,065.24

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Solution

The fourth proportional to 305,145.56, 421,124.22 and 192,065.24 is: 265,064.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,145.56 : 421,124.22 = 192,065.24 : x
  2. Step 2: Convert to fraction form
    305,145.56/421,124.22 = 192,065.24/x
  3. Step 3: Cross multiply
    305,145.56x = 421,124.22 × 192,065.24
  4. Step 4: Simplify right side
    305,145.56x = 80,883,324,384.11
  5. Step 5: Solve for x
    x = 80,883,324,384.11/305,145.56
  6. Step 6: Final answer
    x = 265,064.73

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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.