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Finding the Fourth Proportional to 239,812.63, 330,943.76 and 132,380.35

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Solution

The fourth proportional to 239,812.63, 330,943.76 and 132,380.35 is: 182,686.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,812.63 : 330,943.76 = 132,380.35 : x
  2. Step 2: Convert to fraction form
    239,812.63/330,943.76 = 132,380.35/x
  3. Step 3: Cross multiply
    239,812.63x = 330,943.76 × 132,380.35
  4. Step 4: Simplify right side
    239,812.63x = 43,810,450,779.12
  5. Step 5: Solve for x
    x = 43,810,450,779.12/239,812.63
  6. Step 6: Final answer
    x = 182,686.17

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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.