Home / 343,974.60-515,667.87-130,623.03

Finding the Fourth Proportional to 343,974.60, 515,667.87 and 130,623.03

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Solution

The fourth proportional to 343,974.60, 515,667.87 and 130,623.03 is: 195,822.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,974.60 : 515,667.87 = 130,623.03 : x
  2. Step 2: Convert to fraction form
    343,974.60/515,667.87 = 130,623.03/x
  3. Step 3: Cross multiply
    343,974.60x = 515,667.87 × 130,623.03
  4. Step 4: Simplify right side
    343,974.60x = 67,358,099,653.05
  5. Step 5: Solve for x
    x = 67,358,099,653.05/343,974.60
  6. Step 6: Final answer
    x = 195,822.89

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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.