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Finding the Fourth Proportional to 312,392.27, 468,606.56 and 87,770.21

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Solution

The fourth proportional to 312,392.27, 468,606.56 and 87,770.21 is: 131,660.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,392.27 : 468,606.56 = 87,770.21 : x
  2. Step 2: Convert to fraction form
    312,392.27/468,606.56 = 87,770.21/x
  3. Step 3: Cross multiply
    312,392.27x = 468,606.56 × 87,770.21
  4. Step 4: Simplify right side
    312,392.27x = 41,129,693,396.69
  5. Step 5: Solve for x
    x = 41,129,693,396.69/312,392.27
  6. Step 6: Final answer
    x = 131,660.41

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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.