Home / 218,544.49-327,875.07-78,317.29

Finding the Fourth Proportional to 218,544.49, 327,875.07 and 78,317.29

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Solution

The fourth proportional to 218,544.49, 327,875.07 and 78,317.29 is: 117,496.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,544.49 : 327,875.07 = 78,317.29 : x
  2. Step 2: Convert to fraction form
    218,544.49/327,875.07 = 78,317.29/x
  3. Step 3: Cross multiply
    218,544.49x = 327,875.07 × 78,317.29
  4. Step 4: Simplify right side
    218,544.49x = 25,678,286,940.96
  5. Step 5: Solve for x
    x = 25,678,286,940.96/218,544.49
  6. Step 6: Final answer
    x = 117,496.84

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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.