Home / 443,822.40-665,296.20-218,998.80

Finding the Fourth Proportional to 443,822.40, 665,296.20 and 218,998.80

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Solution

The fourth proportional to 443,822.40, 665,296.20 and 218,998.80 is: 328,282.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,822.40 : 665,296.20 = 218,998.80 : x
  2. Step 2: Convert to fraction form
    443,822.40/665,296.20 = 218,998.80/x
  3. Step 3: Cross multiply
    443,822.40x = 665,296.20 × 218,998.80
  4. Step 4: Simplify right side
    443,822.40x = 145,699,069,444.56
  5. Step 5: Solve for x
    x = 145,699,069,444.56/443,822.40
  6. Step 6: Final answer
    x = 328,282.37

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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.