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Finding the Fourth Proportional to 207,674.60, 311,507.42 and 57,910.91

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Solution

The fourth proportional to 207,674.60, 311,507.42 and 57,910.91 is: 86,865.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,674.60 : 311,507.42 = 57,910.91 : x
  2. Step 2: Convert to fraction form
    207,674.60/311,507.42 = 57,910.91/x
  3. Step 3: Cross multiply
    207,674.60x = 311,507.42 × 57,910.91
  4. Step 4: Simplify right side
    207,674.60x = 18,039,676,751.19
  5. Step 5: Solve for x
    x = 18,039,676,751.19/207,674.60
  6. Step 6: Final answer
    x = 86,865.11

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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.