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Finding the Fourth Proportional to 253,930.87, 380,627.75 and 93,903.98

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Solution

The fourth proportional to 253,930.87, 380,627.75 and 93,903.98 is: 140,756.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,930.87 : 380,627.75 = 93,903.98 : x
  2. Step 2: Convert to fraction form
    253,930.87/380,627.75 = 93,903.98/x
  3. Step 3: Cross multiply
    253,930.87x = 380,627.75 × 93,903.98
  4. Step 4: Simplify right side
    253,930.87x = 35,742,458,720.31
  5. Step 5: Solve for x
    x = 35,742,458,720.31/253,930.87
  6. Step 6: Final answer
    x = 140,756.65

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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.