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Finding the Fourth Proportional to 336,880.60, 505,320.90 and 137,098.15

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Solution

The fourth proportional to 336,880.60, 505,320.90 and 137,098.15 is: 205,647.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,880.60 : 505,320.90 = 137,098.15 : x
  2. Step 2: Convert to fraction form
    336,880.60/505,320.90 = 137,098.15/x
  3. Step 3: Cross multiply
    336,880.60x = 505,320.90 × 137,098.15
  4. Step 4: Simplify right side
    336,880.60x = 69,278,560,546.34
  5. Step 5: Solve for x
    x = 69,278,560,546.34/336,880.60
  6. Step 6: Final answer
    x = 205,647.23

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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.