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Finding the Fourth Proportional to 544,499.21, 816,748.31 and 165,418.40

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Solution

The fourth proportional to 544,499.21, 816,748.31 and 165,418.40 is: 248,127.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,499.21 : 816,748.31 = 165,418.40 : x
  2. Step 2: Convert to fraction form
    544,499.21/816,748.31 = 165,418.40/x
  3. Step 3: Cross multiply
    544,499.21x = 816,748.31 × 165,418.40
  4. Step 4: Simplify right side
    544,499.21x = 135,105,201,098.32
  5. Step 5: Solve for x
    x = 135,105,201,098.32/544,499.21
  6. Step 6: Final answer
    x = 248,127.45

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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.