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Finding the Fourth Proportional to 539,275.80, 809,205.30 and 223,764.60

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Solution

The fourth proportional to 539,275.80, 809,205.30 and 223,764.60 is: 335,767.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,275.80 : 809,205.30 = 223,764.60 : x
  2. Step 2: Convert to fraction form
    539,275.80/809,205.30 = 223,764.60/x
  3. Step 3: Cross multiply
    539,275.80x = 809,205.30 × 223,764.60
  4. Step 4: Simplify right side
    539,275.80x = 181,071,500,272.38
  5. Step 5: Solve for x
    x = 181,071,500,272.38/539,275.80
  6. Step 6: Final answer
    x = 335,767.90

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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.