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Finding the Fourth Proportional to 354,862.42, 489,711.02 and 193,717.58

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Solution

The fourth proportional to 354,862.42, 489,711.02 and 193,717.58 is: 267,330.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,862.42 : 489,711.02 = 193,717.58 : x
  2. Step 2: Convert to fraction form
    354,862.42/489,711.02 = 193,717.58/x
  3. Step 3: Cross multiply
    354,862.42x = 489,711.02 × 193,717.58
  4. Step 4: Simplify right side
    354,862.42x = 94,865,630,276.59
  5. Step 5: Solve for x
    x = 94,865,630,276.59/354,862.42
  6. Step 6: Final answer
    x = 267,330.73

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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.