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Finding the Fourth Proportional to 230,446.58, 345,669.44 and 90,106.78

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Solution

The fourth proportional to 230,446.58, 345,669.44 and 90,106.78 is: 135,160.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,446.58 : 345,669.44 = 90,106.78 : x
  2. Step 2: Convert to fraction form
    230,446.58/345,669.44 = 90,106.78/x
  3. Step 3: Cross multiply
    230,446.58x = 345,669.44 × 90,106.78
  4. Step 4: Simplify right side
    230,446.58x = 31,147,160,182.80
  5. Step 5: Solve for x
    x = 31,147,160,182.80/230,446.58
  6. Step 6: Final answer
    x = 135,160.00

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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.