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Finding the Fourth Proportional to 368,506.39, 508,358.41 and 225,018.13

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Solution

The fourth proportional to 368,506.39, 508,358.41 and 225,018.13 is: 310,414.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,506.39 : 508,358.41 = 225,018.13 : x
  2. Step 2: Convert to fraction form
    368,506.39/508,358.41 = 225,018.13/x
  3. Step 3: Cross multiply
    368,506.39x = 508,358.41 × 225,018.13
  4. Step 4: Simplify right side
    368,506.39x = 114,389,858,787.97
  5. Step 5: Solve for x
    x = 114,389,858,787.97/368,506.39
  6. Step 6: Final answer
    x = 310,414.86

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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.