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Finding the Fourth Proportional to 236,955.69, 355,481.18 and 87,196.77

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Solution

The fourth proportional to 236,955.69, 355,481.18 and 87,196.77 is: 130,812.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,955.69 : 355,481.18 = 87,196.77 : x
  2. Step 2: Convert to fraction form
    236,955.69/355,481.18 = 87,196.77/x
  3. Step 3: Cross multiply
    236,955.69x = 355,481.18 × 87,196.77
  4. Step 4: Simplify right side
    236,955.69x = 30,996,810,582.79
  5. Step 5: Solve for x
    x = 30,996,810,582.79/236,955.69
  6. Step 6: Final answer
    x = 130,812.69

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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.