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Finding the Fourth Proportional to 283,253.80, 424,880.70 and 259,634.20

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Solution

The fourth proportional to 283,253.80, 424,880.70 and 259,634.20 is: 389,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,253.80 : 424,880.70 = 259,634.20 : x
  2. Step 2: Convert to fraction form
    283,253.80/424,880.70 = 259,634.20/x
  3. Step 3: Cross multiply
    283,253.80x = 424,880.70 × 259,634.20
  4. Step 4: Simplify right side
    283,253.80x = 110,313,560,639.94
  5. Step 5: Solve for x
    x = 110,313,560,639.94/283,253.80
  6. Step 6: Final answer
    x = 389,451.30

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1.5x scale

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.