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Finding the Fourth Proportional to 207,682.36, 312,086.34 and 112,982.51

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Solution

The fourth proportional to 207,682.36, 312,086.34 and 112,982.51 is: 169,779.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,682.36 : 312,086.34 = 112,982.51 : x
  2. Step 2: Convert to fraction form
    207,682.36/312,086.34 = 112,982.51/x
  3. Step 3: Cross multiply
    207,682.36x = 312,086.34 × 112,982.51
  4. Step 4: Simplify right side
    207,682.36x = 35,260,298,029.91
  5. Step 5: Solve for x
    x = 35,260,298,029.91/207,682.36
  6. Step 6: Final answer
    x = 169,779.94

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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.