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Finding the Fourth Proportional to 354,672.45, 489,467.79 and 193,530.24

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Solution

The fourth proportional to 354,672.45, 489,467.79 and 193,530.24 is: 267,082.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,672.45 : 489,467.79 = 193,530.24 : x
  2. Step 2: Convert to fraction form
    354,672.45/489,467.79 = 193,530.24/x
  3. Step 3: Cross multiply
    354,672.45x = 489,467.79 × 193,530.24
  4. Step 4: Simplify right side
    354,672.45x = 94,726,818,870.97
  5. Step 5: Solve for x
    x = 94,726,818,870.97/354,672.45
  6. Step 6: Final answer
    x = 267,082.54

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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.