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Finding the Fourth Proportional to 339,993.60, 469,188.58 and 187,028.50

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Solution

The fourth proportional to 339,993.60, 469,188.58 and 187,028.50 is: 258,097.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,993.60 : 469,188.58 = 187,028.50 : x
  2. Step 2: Convert to fraction form
    339,993.60/469,188.58 = 187,028.50/x
  3. Step 3: Cross multiply
    339,993.60x = 469,188.58 × 187,028.50
  4. Step 4: Simplify right side
    339,993.60x = 87,751,636,334.53
  5. Step 5: Solve for x
    x = 87,751,636,334.53/339,993.60
  6. Step 6: Final answer
    x = 258,097.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.