Home / 253,052.08-379,281.72-103,198.80

Finding the Fourth Proportional to 253,052.08, 379,281.72 and 103,198.80

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Solution

The fourth proportional to 253,052.08, 379,281.72 and 103,198.80 is: 154,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,052.08 : 379,281.72 = 103,198.80 : x
  2. Step 2: Convert to fraction form
    253,052.08/379,281.72 = 103,198.80/x
  3. Step 3: Cross multiply
    253,052.08x = 379,281.72 × 103,198.80
  4. Step 4: Simplify right side
    253,052.08x = 39,141,418,365.94
  5. Step 5: Solve for x
    x = 39,141,418,365.94/253,052.08
  6. Step 6: Final answer
    x = 154,677.32

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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.