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Finding the Fourth Proportional to 236,381.64, 354,575.55 and 78,610.08

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Solution

The fourth proportional to 236,381.64, 354,575.55 and 78,610.08 is: 117,916.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,381.64 : 354,575.55 = 78,610.08 : x
  2. Step 2: Convert to fraction form
    236,381.64/354,575.55 = 78,610.08/x
  3. Step 3: Cross multiply
    236,381.64x = 354,575.55 × 78,610.08
  4. Step 4: Simplify right side
    236,381.64x = 27,873,212,351.54
  5. Step 5: Solve for x
    x = 27,873,212,351.54/236,381.64
  6. Step 6: Final answer
    x = 117,916.15

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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.