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Finding the Fourth Proportional to 239,390.84, 330,344.52 and 131,955.32

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Solution

The fourth proportional to 239,390.84, 330,344.52 and 131,955.32 is: 182,090.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,390.84 : 330,344.52 = 131,955.32 : x
  2. Step 2: Convert to fraction form
    239,390.84/330,344.52 = 131,955.32/x
  3. Step 3: Cross multiply
    239,390.84x = 330,344.52 × 131,955.32
  4. Step 4: Simplify right side
    239,390.84x = 43,590,716,846.85
  5. Step 5: Solve for x
    x = 43,590,716,846.85/239,390.84
  6. Step 6: Final answer
    x = 182,090.16

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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.