Home / 415,991.03-624,079.90-131,698.58

Finding the Fourth Proportional to 415,991.03, 624,079.90 and 131,698.58

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Solution

The fourth proportional to 415,991.03, 624,079.90 and 131,698.58 is: 197,577.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,991.03 : 624,079.90 = 131,698.58 : x
  2. Step 2: Convert to fraction form
    415,991.03/624,079.90 = 131,698.58/x
  3. Step 3: Cross multiply
    415,991.03x = 624,079.90 × 131,698.58
  4. Step 4: Simplify right side
    415,991.03x = 82,190,434,747.10
  5. Step 5: Solve for x
    x = 82,190,434,747.10/415,991.03
  6. Step 6: Final answer
    x = 197,577.42

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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.