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Finding the Fourth Proportional to 239,335.94, 330,270.13 and 131,905.64

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Solution

The fourth proportional to 239,335.94, 330,270.13 and 131,905.64 is: 182,022.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,335.94 : 330,270.13 = 131,905.64 : x
  2. Step 2: Convert to fraction form
    239,335.94/330,270.13 = 131,905.64/x
  3. Step 3: Cross multiply
    239,335.94x = 330,270.13 × 131,905.64
  4. Step 4: Simplify right side
    239,335.94x = 43,564,492,870.53
  5. Step 5: Solve for x
    x = 43,564,492,870.53/239,335.94
  6. Step 6: Final answer
    x = 182,022.36

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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.