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Finding the Fourth Proportional to 260,951.68, 391,485.84 and 83,469.34

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Solution

The fourth proportional to 260,951.68, 391,485.84 and 83,469.34 is: 125,222.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,951.68 : 391,485.84 = 83,469.34 : x
  2. Step 2: Convert to fraction form
    260,951.68/391,485.84 = 83,469.34/x
  3. Step 3: Cross multiply
    260,951.68x = 391,485.84 × 83,469.34
  4. Step 4: Simplify right side
    260,951.68x = 32,677,064,684.15
  5. Step 5: Solve for x
    x = 32,677,064,684.15/260,951.68
  6. Step 6: Final answer
    x = 125,222.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.