Home / 285,241.35-427,828.68-74,895.69

Finding the Fourth Proportional to 285,241.35, 427,828.68 and 74,895.69

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Solution

The fourth proportional to 285,241.35, 427,828.68 and 74,895.69 is: 112,334.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,241.35 : 427,828.68 = 74,895.69 : x
  2. Step 2: Convert to fraction form
    285,241.35/427,828.68 = 74,895.69/x
  3. Step 3: Cross multiply
    285,241.35x = 427,828.68 × 74,895.69
  4. Step 4: Simplify right side
    285,241.35x = 32,042,524,190.39
  5. Step 5: Solve for x
    x = 32,042,524,190.39/285,241.35
  6. Step 6: Final answer
    x = 112,334.78

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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.