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Finding the Fourth Proportional to 234,272.56, 323,275.32 and 138,763.84

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Solution

The fourth proportional to 234,272.56, 323,275.32 and 138,763.84 is: 191,481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,272.56 : 323,275.32 = 138,763.84 : x
  2. Step 2: Convert to fraction form
    234,272.56/323,275.32 = 138,763.84/x
  3. Step 3: Cross multiply
    234,272.56x = 323,275.32 × 138,763.84
  4. Step 4: Simplify right side
    234,272.56x = 44,858,924,780.43
  5. Step 5: Solve for x
    x = 44,858,924,780.43/234,272.56
  6. Step 6: Final answer
    x = 191,481.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.