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Finding the Fourth Proportional to 235,049.34, 324,335.43 and 138,257.58

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Solution

The fourth proportional to 235,049.34, 324,335.43 and 138,257.58 is: 190,776.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,049.34 : 324,335.43 = 138,257.58 : x
  2. Step 2: Convert to fraction form
    235,049.34/324,335.43 = 138,257.58/x
  3. Step 3: Cross multiply
    235,049.34x = 324,335.43 × 138,257.58
  4. Step 4: Simplify right side
    235,049.34x = 44,841,831,660.06
  5. Step 5: Solve for x
    x = 44,841,831,660.06/235,049.34
  6. Step 6: Final answer
    x = 190,776.25

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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.