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Finding the Fourth Proportional to 275,842.40, 413,763.60 and 109,630.40

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Solution

The fourth proportional to 275,842.40, 413,763.60 and 109,630.40 is: 164,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,842.40 : 413,763.60 = 109,630.40 : x
  2. Step 2: Convert to fraction form
    275,842.40/413,763.60 = 109,630.40/x
  3. Step 3: Cross multiply
    275,842.40x = 413,763.60 × 109,630.40
  4. Step 4: Simplify right side
    275,842.40x = 45,361,068,973.44
  5. Step 5: Solve for x
    x = 45,361,068,973.44/275,842.40
  6. Step 6: Final answer
    x = 164,445.60

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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.