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Finding the Fourth Proportional to 539,199.70, 809,123.55 and 223,623.70

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Solution

The fourth proportional to 539,199.70, 809,123.55 and 223,623.70 is: 335,569.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,199.70 : 809,123.55 = 223,623.70 : x
  2. Step 2: Convert to fraction form
    539,199.70/809,123.55 = 223,623.70/x
  3. Step 3: Cross multiply
    539,199.70x = 809,123.55 × 223,623.70
  4. Step 4: Simplify right side
    539,199.70x = 180,939,202,008.14
  5. Step 5: Solve for x
    x = 180,939,202,008.14/539,199.70
  6. Step 6: Final answer
    x = 335,569.92

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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.