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Finding the Fourth Proportional to 496,292.80, 744,536.40 and 211,982.80

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Solution

The fourth proportional to 496,292.80, 744,536.40 and 211,982.80 is: 318,015.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,292.80 : 744,536.40 = 211,982.80 : x
  2. Step 2: Convert to fraction form
    496,292.80/744,536.40 = 211,982.80/x
  3. Step 3: Cross multiply
    496,292.80x = 744,536.40 × 211,982.80
  4. Step 4: Simplify right side
    496,292.80x = 157,828,910,773.92
  5. Step 5: Solve for x
    x = 157,828,910,773.92/496,292.80
  6. Step 6: Final answer
    x = 318,015.72

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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.