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Finding the Fourth Proportional to 507,158.96, 699,830.89 and 303,169.37

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Solution

The fourth proportional to 507,158.96, 699,830.89 and 303,169.37 is: 418,344.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,158.96 : 699,830.89 = 303,169.37 : x
  2. Step 2: Convert to fraction form
    507,158.96/699,830.89 = 303,169.37/x
  3. Step 3: Cross multiply
    507,158.96x = 699,830.89 × 303,169.37
  4. Step 4: Simplify right side
    507,158.96x = 212,167,285,770.76
  5. Step 5: Solve for x
    x = 212,167,285,770.76/507,158.96
  6. Step 6: Final answer
    x = 418,344.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.