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Finding the Fourth Proportional to 400,651.02, 552,898.43 and 219,362.96

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Solution

The fourth proportional to 400,651.02, 552,898.43 and 219,362.96 is: 302,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,651.02 : 552,898.43 = 219,362.96 : x
  2. Step 2: Convert to fraction form
    400,651.02/552,898.43 = 219,362.96/x
  3. Step 3: Cross multiply
    400,651.02x = 552,898.43 × 219,362.96
  4. Step 4: Simplify right side
    400,651.02x = 121,285,436,184.15
  5. Step 5: Solve for x
    x = 121,285,436,184.15/400,651.02
  6. Step 6: Final answer
    x = 302,720.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.