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Finding the Fourth Proportional to 260,034.60, 389,187.90 and 188,754.60

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Solution

The fourth proportional to 260,034.60, 389,187.90 and 188,754.60 is: 282,504.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,034.60 : 389,187.90 = 188,754.60 : x
  2. Step 2: Convert to fraction form
    260,034.60/389,187.90 = 188,754.60/x
  3. Step 3: Cross multiply
    260,034.60x = 389,187.90 × 188,754.60
  4. Step 4: Simplify right side
    260,034.60x = 73,461,006,389.34
  5. Step 5: Solve for x
    x = 73,461,006,389.34/260,034.60
  6. Step 6: Final answer
    x = 282,504.74

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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.