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Finding the Fourth Proportional to 605,268.30, 907,639.77 and 205,801.80

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Solution

The fourth proportional to 605,268.30, 907,639.77 and 205,801.80 is: 308,613.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,268.30 : 907,639.77 = 205,801.80 : x
  2. Step 2: Convert to fraction form
    605,268.30/907,639.77 = 205,801.80/x
  3. Step 3: Cross multiply
    605,268.30x = 907,639.77 × 205,801.80
  4. Step 4: Simplify right side
    605,268.30x = 186,793,898,417.59
  5. Step 5: Solve for x
    x = 186,793,898,417.59/605,268.30
  6. Step 6: Final answer
    x = 308,613.38

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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.