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Finding the Fourth Proportional to 635,495.40, 953,242.31 and 162,180.78

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Solution

The fourth proportional to 635,495.40, 953,242.31 and 162,180.78 is: 243,270.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,495.40 : 953,242.31 = 162,180.78 : x
  2. Step 2: Convert to fraction form
    635,495.40/953,242.31 = 162,180.78/x
  3. Step 3: Cross multiply
    635,495.40x = 953,242.31 × 162,180.78
  4. Step 4: Simplify right side
    635,495.40x = 154,597,580,553.90
  5. Step 5: Solve for x
    x = 154,597,580,553.90/635,495.40
  6. Step 6: Final answer
    x = 243,270.97

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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.