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Finding the Fourth Proportional to 355,008, 489,915.08 and 193,864.96

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Solution

The fourth proportional to 355,008, 489,915.08 and 193,864.96 is: 267,535.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,008 : 489,915.08 = 193,864.96 : x
  2. Step 2: Convert to fraction form
    355,008/489,915.08 = 193,864.96/x
  3. Step 3: Cross multiply
    355,008x = 489,915.08 × 193,864.96
  4. Step 4: Simplify right side
    355,008x = 94,977,367,387.60
  5. Step 5: Solve for x
    x = 94,977,367,387.60/355,008
  6. Step 6: Final answer
    x = 267,535.85

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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.