Home / 218,526.12-327,814.56-76,327.38

Finding the Fourth Proportional to 218,526.12, 327,814.56 and 76,327.38

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Solution

The fourth proportional to 218,526.12, 327,814.56 and 76,327.38 is: 114,499.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,526.12 : 327,814.56 = 76,327.38 : x
  2. Step 2: Convert to fraction form
    218,526.12/327,814.56 = 76,327.38/x
  3. Step 3: Cross multiply
    218,526.12x = 327,814.56 × 76,327.38
  4. Step 4: Simplify right side
    218,526.12x = 25,021,226,490.65
  5. Step 5: Solve for x
    x = 25,021,226,490.65/218,526.12
  6. Step 6: Final answer
    x = 114,499.93

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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.