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Finding the Fourth Proportional to 259,268.52, 388,895.49 and 141,684.48

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Solution

The fourth proportional to 259,268.52, 388,895.49 and 141,684.48 is: 212,522.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,268.52 : 388,895.49 = 141,684.48 : x
  2. Step 2: Convert to fraction form
    259,268.52/388,895.49 = 141,684.48/x
  3. Step 3: Cross multiply
    259,268.52x = 388,895.49 × 141,684.48
  4. Step 4: Simplify right side
    259,268.52x = 55,100,455,275.00
  5. Step 5: Solve for x
    x = 55,100,455,275.00/259,268.52
  6. Step 6: Final answer
    x = 212,522.74

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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.