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Finding the Fourth Proportional to 215,282.88, 322,628.40 and 109,880.28

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Solution

The fourth proportional to 215,282.88, 322,628.40 and 109,880.28 is: 164,669.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,282.88 : 322,628.40 = 109,880.28 : x
  2. Step 2: Convert to fraction form
    215,282.88/322,628.40 = 109,880.28/x
  3. Step 3: Cross multiply
    215,282.88x = 322,628.40 × 109,880.28
  4. Step 4: Simplify right side
    215,282.88x = 35,450,498,927.95
  5. Step 5: Solve for x
    x = 35,450,498,927.95/215,282.88
  6. Step 6: Final answer
    x = 164,669.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.