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Finding the Fourth Proportional to 445,450.66, 668,525.91 and 245,908.78

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Solution

The fourth proportional to 445,450.66, 668,525.91 and 245,908.78 is: 369,056.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,450.66 : 668,525.91 = 245,908.78 : x
  2. Step 2: Convert to fraction form
    445,450.66/668,525.91 = 245,908.78/x
  3. Step 3: Cross multiply
    445,450.66x = 668,525.91 × 245,908.78
  4. Step 4: Simplify right side
    445,450.66x = 164,396,390,926.49
  5. Step 5: Solve for x
    x = 164,396,390,926.49/445,450.66
  6. Step 6: Final answer
    x = 369,056.34

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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.