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Finding the Fourth Proportional to 345,763.45, 476,947.93 and 269,161.30

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Solution

The fourth proportional to 345,763.45, 476,947.93 and 269,161.30 is: 371,282.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,763.45 : 476,947.93 = 269,161.30 : x
  2. Step 2: Convert to fraction form
    345,763.45/476,947.93 = 269,161.30/x
  3. Step 3: Cross multiply
    345,763.45x = 476,947.93 × 269,161.30
  4. Step 4: Simplify right side
    345,763.45x = 128,375,924,871.11
  5. Step 5: Solve for x
    x = 128,375,924,871.11/345,763.45
  6. Step 6: Final answer
    x = 371,282.52

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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.