Home / 218,830.14-327,312.09-134,382.78

Finding the Fourth Proportional to 218,830.14, 327,312.09 and 134,382.78

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Solution

The fourth proportional to 218,830.14, 327,312.09 and 134,382.78 is: 201,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,830.14 : 327,312.09 = 134,382.78 : x
  2. Step 2: Convert to fraction form
    218,830.14/327,312.09 = 134,382.78/x
  3. Step 3: Cross multiply
    218,830.14x = 327,312.09 × 134,382.78
  4. Step 4: Simplify right side
    218,830.14x = 43,985,108,581.81
  5. Step 5: Solve for x
    x = 43,985,108,581.81/218,830.14
  6. Step 6: Final answer
    x = 201,001.14

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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.