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Finding the Fourth Proportional to 260,372.09, 359,296.54 and 145,630.86

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Solution

The fourth proportional to 260,372.09, 359,296.54 and 145,630.86 is: 200,961.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,372.09 : 359,296.54 = 145,630.86 : x
  2. Step 2: Convert to fraction form
    260,372.09/359,296.54 = 145,630.86/x
  3. Step 3: Cross multiply
    260,372.09x = 359,296.54 × 145,630.86
  4. Step 4: Simplify right side
    260,372.09x = 52,324,662,403.79
  5. Step 5: Solve for x
    x = 52,324,662,403.79/260,372.09
  6. Step 6: Final answer
    x = 200,961.10

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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.