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Finding the Fourth Proportional to 365,429.70, 548,144.55 and 207,965.70

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Solution

The fourth proportional to 365,429.70, 548,144.55 and 207,965.70 is: 311,948.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,429.70 : 548,144.55 = 207,965.70 : x
  2. Step 2: Convert to fraction form
    365,429.70/548,144.55 = 207,965.70/x
  3. Step 3: Cross multiply
    365,429.70x = 548,144.55 × 207,965.70
  4. Step 4: Simplify right side
    365,429.70x = 113,995,265,041.94
  5. Step 5: Solve for x
    x = 113,995,265,041.94/365,429.70
  6. Step 6: Final answer
    x = 311,948.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.