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Finding the Fourth Proportional to 207,673.85, 311,506.30 and 57,910.15

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Solution

The fourth proportional to 207,673.85, 311,506.30 and 57,910.15 is: 86,863.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,673.85 : 311,506.30 = 57,910.15 : x
  2. Step 2: Convert to fraction form
    207,673.85/311,506.30 = 57,910.15/x
  3. Step 3: Cross multiply
    207,673.85x = 311,506.30 × 57,910.15
  4. Step 4: Simplify right side
    207,673.85x = 18,039,377,020.72
  5. Step 5: Solve for x
    x = 18,039,377,020.72/207,673.85
  6. Step 6: Final answer
    x = 86,863.98

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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.