Home / 338,905.20-508,361.40-102,249.93

Finding the Fourth Proportional to 338,905.20, 508,361.40 and 102,249.93

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Solution

The fourth proportional to 338,905.20, 508,361.40 and 102,249.93 is: 153,375.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,905.20 : 508,361.40 = 102,249.93 : x
  2. Step 2: Convert to fraction form
    338,905.20/508,361.40 = 102,249.93/x
  3. Step 3: Cross multiply
    338,905.20x = 508,361.40 × 102,249.93
  4. Step 4: Simplify right side
    338,905.20x = 51,979,917,564.70
  5. Step 5: Solve for x
    x = 51,979,917,564.70/338,905.20
  6. Step 6: Final answer
    x = 153,375.98

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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.