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Finding the Fourth Proportional to 230,103.84, 345,170.64 and 72,338.40

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Solution

The fourth proportional to 230,103.84, 345,170.64 and 72,338.40 is: 108,512.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,103.84 : 345,170.64 = 72,338.40 : x
  2. Step 2: Convert to fraction form
    230,103.84/345,170.64 = 72,338.40/x
  3. Step 3: Cross multiply
    230,103.84x = 345,170.64 × 72,338.40
  4. Step 4: Simplify right side
    230,103.84x = 24,969,091,824.58
  5. Step 5: Solve for x
    x = 24,969,091,824.58/230,103.84
  6. Step 6: Final answer
    x = 108,512.28

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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.