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Finding the Fourth Proportional to 339,818, 468,949.38 and 188,915

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Solution

The fourth proportional to 339,818, 468,949.38 and 188,915 is: 260,703.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,818 : 468,949.38 = 188,915 : x
  2. Step 2: Convert to fraction form
    339,818/468,949.38 = 188,915/x
  3. Step 3: Cross multiply
    339,818x = 468,949.38 × 188,915
  4. Step 4: Simplify right side
    339,818x = 88,591,572,122.70
  5. Step 5: Solve for x
    x = 88,591,572,122.70/339,818
  6. Step 6: Final answer
    x = 260,703.00

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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.