Home / 351,619.40-527,429.10-218,649.80

Finding the Fourth Proportional to 351,619.40, 527,429.10 and 218,649.80

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Solution

The fourth proportional to 351,619.40, 527,429.10 and 218,649.80 is: 327,974.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,619.40 : 527,429.10 = 218,649.80 : x
  2. Step 2: Convert to fraction form
    351,619.40/527,429.10 = 218,649.80/x
  3. Step 3: Cross multiply
    351,619.40x = 527,429.10 × 218,649.80
  4. Step 4: Simplify right side
    351,619.40x = 115,322,267,229.18
  5. Step 5: Solve for x
    x = 115,322,267,229.18/351,619.40
  6. Step 6: Final answer
    x = 327,974.70

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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.