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Finding the Fourth Proportional to 274,893.76, 412,420.56 and 115,045.12

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Solution

The fourth proportional to 274,893.76, 412,420.56 and 115,045.12 is: 172,601.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,893.76 : 412,420.56 = 115,045.12 : x
  2. Step 2: Convert to fraction form
    274,893.76/412,420.56 = 115,045.12/x
  3. Step 3: Cross multiply
    274,893.76x = 412,420.56 × 115,045.12
  4. Step 4: Simplify right side
    274,893.76x = 47,446,972,815.67
  5. Step 5: Solve for x
    x = 47,446,972,815.67/274,893.76
  6. Step 6: Final answer
    x = 172,601.13

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1.5x scale

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.