Home / 379,588.28-523,815.86-218,448.90

Finding the Fourth Proportional to 379,588.28, 523,815.86 and 218,448.90

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Solution

The fourth proportional to 379,588.28, 523,815.86 and 218,448.90 is: 301,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,588.28 : 523,815.86 = 218,448.90 : x
  2. Step 2: Convert to fraction form
    379,588.28/523,815.86 = 218,448.90/x
  3. Step 3: Cross multiply
    379,588.28x = 523,815.86 × 218,448.90
  4. Step 4: Simplify right side
    379,588.28x = 114,426,998,965.68
  5. Step 5: Solve for x
    x = 114,426,998,965.68/379,588.28
  6. Step 6: Final answer
    x = 301,450.30

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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.