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Finding the Fourth Proportional to 213,321.70, 319,982.52 and 63,558.10

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Solution

The fourth proportional to 213,321.70, 319,982.52 and 63,558.10 is: 95,337.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,321.70 : 319,982.52 = 63,558.10 : x
  2. Step 2: Convert to fraction form
    213,321.70/319,982.52 = 63,558.10/x
  3. Step 3: Cross multiply
    213,321.70x = 319,982.52 × 63,558.10
  4. Step 4: Simplify right side
    213,321.70x = 20,337,481,004.41
  5. Step 5: Solve for x
    x = 20,337,481,004.41/213,321.70
  6. Step 6: Final answer
    x = 95,337.14

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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.