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Finding the Fourth Proportional to 280,941.86, 388,012.73 and 259,684.22

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Solution

The fourth proportional to 280,941.86, 388,012.73 and 259,684.22 is: 358,653.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,941.86 : 388,012.73 = 259,684.22 : x
  2. Step 2: Convert to fraction form
    280,941.86/388,012.73 = 259,684.22/x
  3. Step 3: Cross multiply
    280,941.86x = 388,012.73 × 259,684.22
  4. Step 4: Simplify right side
    280,941.86x = 100,760,782,811.73
  5. Step 5: Solve for x
    x = 100,760,782,811.73/280,941.86
  6. Step 6: Final answer
    x = 358,653.50

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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.