Home / 343,815.40-515,412.06-122,147.56

Finding the Fourth Proportional to 343,815.40, 515,412.06 and 122,147.56

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Solution

The fourth proportional to 343,815.40, 515,412.06 and 122,147.56 is: 183,110.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,815.40 : 515,412.06 = 122,147.56 : x
  2. Step 2: Convert to fraction form
    343,815.40/515,412.06 = 122,147.56/x
  3. Step 3: Cross multiply
    343,815.40x = 515,412.06 × 122,147.56
  4. Step 4: Simplify right side
    343,815.40x = 62,956,325,523.57
  5. Step 5: Solve for x
    x = 62,956,325,523.57/343,815.40
  6. Step 6: Final answer
    x = 183,110.84

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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.