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Finding the Fourth Proportional to 323,519.76, 485,279.64 and 98,880.84

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Solution

The fourth proportional to 323,519.76, 485,279.64 and 98,880.84 is: 148,321.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,519.76 : 485,279.64 = 98,880.84 : x
  2. Step 2: Convert to fraction form
    323,519.76/485,279.64 = 98,880.84/x
  3. Step 3: Cross multiply
    323,519.76x = 485,279.64 × 98,880.84
  4. Step 4: Simplify right side
    323,519.76x = 47,984,858,438.10
  5. Step 5: Solve for x
    x = 47,984,858,438.10/323,519.76
  6. Step 6: Final answer
    x = 148,321.26

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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.