Home / 279,231.14-385,127.80-193,333.88

Finding the Fourth Proportional to 279,231.14, 385,127.80 and 193,333.88

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Solution

The fourth proportional to 279,231.14, 385,127.80 and 193,333.88 is: 266,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,231.14 : 385,127.80 = 193,333.88 : x
  2. Step 2: Convert to fraction form
    279,231.14/385,127.80 = 193,333.88/x
  3. Step 3: Cross multiply
    279,231.14x = 385,127.80 × 193,333.88
  4. Step 4: Simplify right side
    279,231.14x = 74,458,250,903.19
  5. Step 5: Solve for x
    x = 74,458,250,903.19/279,231.14
  6. Step 6: Final answer
    x = 266,654.54

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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.