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Finding the Fourth Proportional to 335,421.40, 503,520.90 and 202,451.80

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Solution

The fourth proportional to 335,421.40, 503,520.90 and 202,451.80 is: 303,912.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,421.40 : 503,520.90 = 202,451.80 : x
  2. Step 2: Convert to fraction form
    335,421.40/503,520.90 = 202,451.80/x
  3. Step 3: Cross multiply
    335,421.40x = 503,520.90 × 202,451.80
  4. Step 4: Simplify right side
    335,421.40x = 101,938,712,542.62
  5. Step 5: Solve for x
    x = 101,938,712,542.62/335,421.40
  6. Step 6: Final answer
    x = 303,912.37

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.