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Finding the Fourth Proportional to 312,351.76, 468,615.12 and 125,494.48

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Solution

The fourth proportional to 312,351.76, 468,615.12 and 125,494.48 is: 188,276.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,351.76 : 468,615.12 = 125,494.48 : x
  2. Step 2: Convert to fraction form
    312,351.76/468,615.12 = 125,494.48/x
  3. Step 3: Cross multiply
    312,351.76x = 468,615.12 × 125,494.48
  4. Step 4: Simplify right side
    312,351.76x = 58,808,610,804.54
  5. Step 5: Solve for x
    x = 58,808,610,804.54/312,351.76
  6. Step 6: Final answer
    x = 188,276.87

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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.