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Finding the Fourth Proportional to 552,012.60, 828,018.90 and 172,936.50

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Solution

The fourth proportional to 552,012.60, 828,018.90 and 172,936.50 is: 259,404.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,012.60 : 828,018.90 = 172,936.50 : x
  2. Step 2: Convert to fraction form
    552,012.60/828,018.90 = 172,936.50/x
  3. Step 3: Cross multiply
    552,012.60x = 828,018.90 × 172,936.50
  4. Step 4: Simplify right side
    552,012.60x = 143,194,690,499.85
  5. Step 5: Solve for x
    x = 143,194,690,499.85/552,012.60
  6. Step 6: Final answer
    x = 259,404.75

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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.