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Finding the Fourth Proportional to 339,810.72, 468,883.60 and 188,903.84

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Solution

The fourth proportional to 339,810.72, 468,883.60 and 188,903.84 is: 260,656.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,810.72 : 468,883.60 = 188,903.84 : x
  2. Step 2: Convert to fraction form
    339,810.72/468,883.60 = 188,903.84/x
  3. Step 3: Cross multiply
    339,810.72x = 468,883.60 × 188,903.84
  4. Step 4: Simplify right side
    339,810.72x = 88,573,912,553.02
  5. Step 5: Solve for x
    x = 88,573,912,553.02/339,810.72
  6. Step 6: Final answer
    x = 260,656.62

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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.