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Finding the Fourth Proportional to 445,809.49, 668,754.33 and 125,965.29

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Solution

The fourth proportional to 445,809.49, 668,754.33 and 125,965.29 is: 188,959.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,809.49 : 668,754.33 = 125,965.29 : x
  2. Step 2: Convert to fraction form
    445,809.49/668,754.33 = 125,965.29/x
  3. Step 3: Cross multiply
    445,809.49x = 668,754.33 × 125,965.29
  4. Step 4: Simplify right side
    445,809.49x = 84,239,835,152.66
  5. Step 5: Solve for x
    x = 84,239,835,152.66/445,809.49
  6. Step 6: Final answer
    x = 188,959.27

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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.