Home / 354,975.56-489,847.12-193,828.20

Finding the Fourth Proportional to 354,975.56, 489,847.12 and 193,828.20

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Solution

The fourth proportional to 354,975.56, 489,847.12 and 193,828.20 is: 267,472.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,975.56 : 489,847.12 = 193,828.20 : x
  2. Step 2: Convert to fraction form
    354,975.56/489,847.12 = 193,828.20/x
  3. Step 3: Cross multiply
    354,975.56x = 489,847.12 × 193,828.20
  4. Step 4: Simplify right side
    354,975.56x = 94,946,185,544.78
  5. Step 5: Solve for x
    x = 94,946,185,544.78/354,975.56
  6. Step 6: Final answer
    x = 267,472.46

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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.