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Finding the Fourth Proportional to 322,986.60, 483,605.10 and 253,002.60

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Solution

The fourth proportional to 322,986.60, 483,605.10 and 253,002.60 is: 378,818.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,986.60 : 483,605.10 = 253,002.60 : x
  2. Step 2: Convert to fraction form
    322,986.60/483,605.10 = 253,002.60/x
  3. Step 3: Cross multiply
    322,986.60x = 483,605.10 × 253,002.60
  4. Step 4: Simplify right side
    322,986.60x = 122,353,347,673.26
  5. Step 5: Solve for x
    x = 122,353,347,673.26/322,986.60
  6. Step 6: Final answer
    x = 378,818.65

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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.