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Finding the Fourth Proportional to 539,623.50, 809,474.49 and 207,199.50

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Solution

The fourth proportional to 539,623.50, 809,474.49 and 207,199.50 is: 310,814.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,623.50 : 809,474.49 = 207,199.50 : x
  2. Step 2: Convert to fraction form
    539,623.50/809,474.49 = 207,199.50/x
  3. Step 3: Cross multiply
    539,623.50x = 809,474.49 × 207,199.50
  4. Step 4: Simplify right side
    539,623.50x = 167,722,709,590.76
  5. Step 5: Solve for x
    x = 167,722,709,590.76/539,623.50
  6. Step 6: Final answer
    x = 310,814.32

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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.