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Finding the Fourth Proportional to 445,844.61, 667,881.16 and 245,668.50

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Solution

The fourth proportional to 445,844.61, 667,881.16 and 245,668.50 is: 368,014.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,844.61 : 667,881.16 = 245,668.50 : x
  2. Step 2: Convert to fraction form
    445,844.61/667,881.16 = 245,668.50/x
  3. Step 3: Cross multiply
    445,844.61x = 667,881.16 × 245,668.50
  4. Step 4: Simplify right side
    445,844.61x = 164,077,362,755.46
  5. Step 5: Solve for x
    x = 164,077,362,755.46/445,844.61
  6. Step 6: Final answer
    x = 368,014.68

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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.