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Finding the Fourth Proportional to 236,813.66, 326,799.03 and 129,381.39

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Solution

The fourth proportional to 236,813.66, 326,799.03 and 129,381.39 is: 178,544.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,813.66 : 326,799.03 = 129,381.39 : x
  2. Step 2: Convert to fraction form
    236,813.66/326,799.03 = 129,381.39/x
  3. Step 3: Cross multiply
    236,813.66x = 326,799.03 × 129,381.39
  4. Step 4: Simplify right side
    236,813.66x = 42,281,713,237.23
  5. Step 5: Solve for x
    x = 42,281,713,237.23/236,813.66
  6. Step 6: Final answer
    x = 178,544.23

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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.