Home / 442,936.78-664,492.71-162,456.46

Finding the Fourth Proportional to 442,936.78, 664,492.71 and 162,456.46

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Solution

The fourth proportional to 442,936.78, 664,492.71 and 162,456.46 is: 243,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,936.78 : 664,492.71 = 162,456.46 : x
  2. Step 2: Convert to fraction form
    442,936.78/664,492.71 = 162,456.46/x
  3. Step 3: Cross multiply
    442,936.78x = 664,492.71 × 162,456.46
  4. Step 4: Simplify right side
    442,936.78x = 107,951,133,362.41
  5. Step 5: Solve for x
    x = 107,951,133,362.41/442,936.78
  6. Step 6: Final answer
    x = 243,716.80

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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.