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Finding the Fourth Proportional to 508,169.09, 701,268.57 and 278,721.68

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Solution

The fourth proportional to 508,169.09, 701,268.57 and 278,721.68 is: 384,633.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,169.09 : 701,268.57 = 278,721.68 : x
  2. Step 2: Convert to fraction form
    508,169.09/701,268.57 = 278,721.68/x
  3. Step 3: Cross multiply
    508,169.09x = 701,268.57 × 278,721.68
  4. Step 4: Simplify right side
    508,169.09x = 195,458,750,455.26
  5. Step 5: Solve for x
    x = 195,458,750,455.26/508,169.09
  6. Step 6: Final answer
    x = 384,633.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.