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Finding the Fourth Proportional to 275,553, 412,944.60 and 148,920.28

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Solution

The fourth proportional to 275,553, 412,944.60 and 148,920.28 is: 223,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,553 : 412,944.60 = 148,920.28 : x
  2. Step 2: Convert to fraction form
    275,553/412,944.60 = 148,920.28/x
  3. Step 3: Cross multiply
    275,553x = 412,944.60 × 148,920.28
  4. Step 4: Simplify right side
    275,553x = 61,495,825,456.49
  5. Step 5: Solve for x
    x = 61,495,825,456.49/275,553
  6. Step 6: Final answer
    x = 223,172.40

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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.