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Finding the Fourth Proportional to 354,959.44, 489,854.12 and 193,824.72

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Solution

The fourth proportional to 354,959.44, 489,854.12 and 193,824.72 is: 267,483.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,959.44 : 489,854.12 = 193,824.72 : x
  2. Step 2: Convert to fraction form
    354,959.44/489,854.12 = 193,824.72/x
  3. Step 3: Cross multiply
    354,959.44x = 489,854.12 × 193,824.72
  4. Step 4: Simplify right side
    354,959.44x = 94,945,837,649.85
  5. Step 5: Solve for x
    x = 94,945,837,649.85/354,959.44
  6. Step 6: Final answer
    x = 267,483.62

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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.