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Finding the Fourth Proportional to 339,975.60, 469,166.80 and 189,072.60

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Solution

The fourth proportional to 339,975.60, 469,166.80 and 189,072.60 is: 260,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,975.60 : 469,166.80 = 189,072.60 : x
  2. Step 2: Convert to fraction form
    339,975.60/469,166.80 = 189,072.60/x
  3. Step 3: Cross multiply
    339,975.60x = 469,166.80 × 189,072.60
  4. Step 4: Simplify right side
    339,975.60x = 88,706,586,709.68
  5. Step 5: Solve for x
    x = 88,706,586,709.68/339,975.60
  6. Step 6: Final answer
    x = 260,920.45

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1.5x scale

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.