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Finding the Fourth Proportional to 539,509.50, 809,279.10 and 165,532.50

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Solution

The fourth proportional to 539,509.50, 809,279.10 and 165,532.50 is: 248,303.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,509.50 : 809,279.10 = 165,532.50 : x
  2. Step 2: Convert to fraction form
    539,509.50/809,279.10 = 165,532.50/x
  3. Step 3: Cross multiply
    539,509.50x = 809,279.10 × 165,532.50
  4. Step 4: Simplify right side
    539,509.50x = 133,961,992,620.75
  5. Step 5: Solve for x
    x = 133,961,992,620.75/539,509.50
  6. Step 6: Final answer
    x = 248,303.31

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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.