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Finding the Fourth Proportional to 225,857.51, 311,682.52 and 139,799.35

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Solution

The fourth proportional to 225,857.51, 311,682.52 and 139,799.35 is: 192,922.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,857.51 : 311,682.52 = 139,799.35 : x
  2. Step 2: Convert to fraction form
    225,857.51/311,682.52 = 139,799.35/x
  3. Step 3: Cross multiply
    225,857.51x = 311,682.52 × 139,799.35
  4. Step 4: Simplify right side
    225,857.51x = 43,573,013,480.34
  5. Step 5: Solve for x
    x = 43,573,013,480.34/225,857.51
  6. Step 6: Final answer
    x = 192,922.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.