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Finding the Fourth Proportional to 284,087.68, 425,725.50 and 208,615.84

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Solution

The fourth proportional to 284,087.68, 425,725.50 and 208,615.84 is: 312,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,087.68 : 425,725.50 = 208,615.84 : x
  2. Step 2: Convert to fraction form
    284,087.68/425,725.50 = 208,615.84/x
  3. Step 3: Cross multiply
    284,087.68x = 425,725.50 × 208,615.84
  4. Step 4: Simplify right side
    284,087.68x = 88,813,082,791.92
  5. Step 5: Solve for x
    x = 88,813,082,791.92/284,087.68
  6. Step 6: Final answer
    x = 312,625.60

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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.