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Finding the Fourth Proportional to 259,690.73, 355,774.64 and 249,979.55

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Solution

The fourth proportional to 259,690.73, 355,774.64 and 249,979.55 is: 342,470.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,690.73 : 355,774.64 = 249,979.55 : x
  2. Step 2: Convert to fraction form
    259,690.73/355,774.64 = 249,979.55/x
  3. Step 3: Cross multiply
    259,690.73x = 355,774.64 × 249,979.55
  4. Step 4: Simplify right side
    259,690.73x = 88,936,385,923.00
  5. Step 5: Solve for x
    x = 88,936,385,923.00/259,690.73
  6. Step 6: Final answer
    x = 342,470.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.