Home / 218,654.14-328,076.51-76,601.31

Finding the Fourth Proportional to 218,654.14, 328,076.51 and 76,601.31

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Solution

The fourth proportional to 218,654.14, 328,076.51 and 76,601.31 is: 114,935.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,654.14 : 328,076.51 = 76,601.31 : x
  2. Step 2: Convert to fraction form
    218,654.14/328,076.51 = 76,601.31/x
  3. Step 3: Cross multiply
    218,654.14x = 328,076.51 × 76,601.31
  4. Step 4: Simplify right side
    218,654.14x = 25,131,090,446.23
  5. Step 5: Solve for x
    x = 25,131,090,446.23/218,654.14
  6. Step 6: Final answer
    x = 114,935.35

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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.