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Finding the Fourth Proportional to 236,259, 354,388.50 and 61,155

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Solution

The fourth proportional to 236,259, 354,388.50 and 61,155 is: 91,732.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,259 : 354,388.50 = 61,155 : x
  2. Step 2: Convert to fraction form
    236,259/354,388.50 = 61,155/x
  3. Step 3: Cross multiply
    236,259x = 354,388.50 × 61,155
  4. Step 4: Simplify right side
    236,259x = 21,672,628,717.50
  5. Step 5: Solve for x
    x = 21,672,628,717.50/236,259
  6. Step 6: Final answer
    x = 91,732.50

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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.