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Finding the Fourth Proportional to 260,935, 391,402.50 and 63,943

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Solution

The fourth proportional to 260,935, 391,402.50 and 63,943 is: 95,914.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,935 : 391,402.50 = 63,943 : x
  2. Step 2: Convert to fraction form
    260,935/391,402.50 = 63,943/x
  3. Step 3: Cross multiply
    260,935x = 391,402.50 × 63,943
  4. Step 4: Simplify right side
    260,935x = 25,027,450,057.50
  5. Step 5: Solve for x
    x = 25,027,450,057.50/260,935
  6. Step 6: Final answer
    x = 95,914.50

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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.