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Finding the Fourth Proportional to 275,553.12, 412,944.62 and 148,920.35

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Solution

The fourth proportional to 275,553.12, 412,944.62 and 148,920.35 is: 223,172.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,553.12 : 412,944.62 = 148,920.35 : x
  2. Step 2: Convert to fraction form
    275,553.12/412,944.62 = 148,920.35/x
  3. Step 3: Cross multiply
    275,553.12x = 412,944.62 × 148,920.35
  4. Step 4: Simplify right side
    275,553.12x = 61,495,857,341.02
  5. Step 5: Solve for x
    x = 61,495,857,341.02/275,553.12
  6. Step 6: Final answer
    x = 223,172.42

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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.