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Finding the Fourth Proportional to 311,808.51, 467,502.62 and 251,910.68

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Solution

The fourth proportional to 311,808.51, 467,502.62 and 251,910.68 is: 377,696.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,808.51 : 467,502.62 = 251,910.68 : x
  2. Step 2: Convert to fraction form
    311,808.51/467,502.62 = 251,910.68/x
  3. Step 3: Cross multiply
    311,808.51x = 467,502.62 × 251,910.68
  4. Step 4: Simplify right side
    311,808.51x = 117,768,899,308.92
  5. Step 5: Solve for x
    x = 117,768,899,308.92/311,808.51
  6. Step 6: Final answer
    x = 377,696.23

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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.