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Finding the Fourth Proportional to 313,936.40, 470,894.04 and 136,443.38

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Solution

The fourth proportional to 313,936.40, 470,894.04 and 136,443.38 is: 204,660.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,936.40 : 470,894.04 = 136,443.38 : x
  2. Step 2: Convert to fraction form
    313,936.40/470,894.04 = 136,443.38/x
  3. Step 3: Cross multiply
    313,936.40x = 470,894.04 × 136,443.38
  4. Step 4: Simplify right side
    313,936.40x = 64,250,374,439.46
  5. Step 5: Solve for x
    x = 64,250,374,439.46/313,936.40
  6. Step 6: Final answer
    x = 204,660.48

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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.