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Finding the Fourth Proportional to 323,150.40, 484,747.20 and 109,915.20

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Solution

The fourth proportional to 323,150.40, 484,747.20 and 109,915.20 is: 164,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,150.40 : 484,747.20 = 109,915.20 : x
  2. Step 2: Convert to fraction form
    323,150.40/484,747.20 = 109,915.20/x
  3. Step 3: Cross multiply
    323,150.40x = 484,747.20 × 109,915.20
  4. Step 4: Simplify right side
    323,150.40x = 53,281,085,437.44
  5. Step 5: Solve for x
    x = 53,281,085,437.44/323,150.40
  6. Step 6: Final answer
    x = 164,880.15

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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.