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Finding the Fourth Proportional to 312,390.54, 468,581.67 and 75,735.36

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Solution

The fourth proportional to 312,390.54, 468,581.67 and 75,735.36 is: 113,602.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,390.54 : 468,581.67 = 75,735.36 : x
  2. Step 2: Convert to fraction form
    312,390.54/468,581.67 = 75,735.36/x
  3. Step 3: Cross multiply
    312,390.54x = 468,581.67 × 75,735.36
  4. Step 4: Simplify right side
    312,390.54x = 35,488,201,466.85
  5. Step 5: Solve for x
    x = 35,488,201,466.85/312,390.54
  6. Step 6: Final answer
    x = 113,602.04

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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.