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Finding the Fourth Proportional to 239,775.88, 330,890.40 and 132,346

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Solution

The fourth proportional to 239,775.88, 330,890.40 and 132,346 is: 182,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,775.88 : 330,890.40 = 132,346 : x
  2. Step 2: Convert to fraction form
    239,775.88/330,890.40 = 132,346/x
  3. Step 3: Cross multiply
    239,775.88x = 330,890.40 × 132,346
  4. Step 4: Simplify right side
    239,775.88x = 43,792,020,878.40
  5. Step 5: Solve for x
    x = 43,792,020,878.40/239,775.88
  6. Step 6: Final answer
    x = 182,637.31

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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.