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Finding the Fourth Proportional to 366,914.60, 550,371.90 and 340,342.55

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Solution

The fourth proportional to 366,914.60, 550,371.90 and 340,342.55 is: 510,513.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,914.60 : 550,371.90 = 340,342.55 : x
  2. Step 2: Convert to fraction form
    366,914.60/550,371.90 = 340,342.55/x
  3. Step 3: Cross multiply
    366,914.60x = 550,371.90 × 340,342.55
  4. Step 4: Simplify right side
    366,914.60x = 187,314,975,894.35
  5. Step 5: Solve for x
    x = 187,314,975,894.35/366,914.60
  6. Step 6: Final answer
    x = 510,513.83

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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.