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Finding the Fourth Proportional to 445,128.84, 667,412.22 and 245,588.28

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Solution

The fourth proportional to 445,128.84, 667,412.22 and 245,588.28 is: 368,227.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,128.84 : 667,412.22 = 245,588.28 : x
  2. Step 2: Convert to fraction form
    445,128.84/667,412.22 = 245,588.28/x
  3. Step 3: Cross multiply
    445,128.84x = 667,412.22 × 245,588.28
  4. Step 4: Simplify right side
    445,128.84x = 163,908,619,160.78
  5. Step 5: Solve for x
    x = 163,908,619,160.78/445,128.84
  6. Step 6: Final answer
    x = 368,227.36

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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.